C/2017
K2 (PANSTARRS): An evening comet visible in small telescopes
This comet begins the month in Ophiuchus at magnitude 9.7. Look
for a 6' coma. It should brighten by about 0.5 magnitudes by month's end. FINDER
CHART
Latitude |
Visibility June 4 |
Visibility June 11 |
Visibility June 18 |
Visibility June 25 |
Visibility July 2 |
Nights Visible |
55o
N |
High during morning twilight at
~00:00 |
High during morning twilight at
~00:10 |
High during morning twilight at
~00:00 |
Fairly high during morning
twilight at ~00:00 |
Fairly high during evening
twilight at ~00:00 |
1- |
40o
N |
High at ~01:20 |
High at ~02:20 |
High at ~23:40 |
High at ~23:20 |
High at ~22:40 |
1- |
Equator |
High at ~01:20 |
High at ~03:30 |
High at ~22:40 |
High at ~23:20 |
High at ~22:40 |
1- |
30o S |
High at ~01:20 |
Fairly high in the western sky
at ~04:00 |
High at ~22:10 |
High at ~23:20 |
High at ~22:40 |
1- |
45P/Honda-Mrkos-Pajdusakova:
An evening comet visible in a 6-inch (15 cm) telescope
This comet begins the month in Gemini at magnitude 9.1. Look for
a 3.5' coma. It should fade rapidly, moving into Cancer by month's end. FINDER
CHART
Latitude |
Visibility June 4 |
Visibility June 11 |
Visibility June 18 |
Visibility June 25 |
Visibility July 2 |
Nights Visible |
55o
N |
Not visible |
Not visible |
Not visible |
Not visible |
Not visible |
|
40o
N |
Very low in the western sky
during evening twilight at ~20:50 |
Not visible |
Not visible |
Not visible |
Not visible |
1-19 |
Equator |
Low in the western sky during
evening twilight at ~19:10 |
Low in the western sky during
evening twilight at ~19:10 |
Low in the western sky during
evening twilight at ~19:20 |
Not visible |
Not visible |
1- |
30o S |
Low in the western sky during
evening twilight at ~18:20 |
Low in the western sky during
evening twilight at ~18:20 |
Not visible |
Not visible |
Not visible |
1- |
C/2021 E3 (ZTF): A
southern hemisphere morning comet visible in a 6-inch (15 cm) telescope
This comet begins the month in Hydrus at magnitude 9.7. Look for
a 6' coma. It should fade slowly, moving into Carina by month's end. The best
visibility is early in the month as seen from the southern hemisphere. FINDER
CHART
Latitude |
Visibility June 4 |
Visibility June 11 |
Visibility June 18 |
Visibility June 25 |
Visibility July 2 |
Nights Visible |
55o
N |
Not visible |
Not visible |
Not visible |
Not visible |
Not visible |
|
40o
N |
Not visible |
Not visible |
Not visible |
Not visible |
Not visible |
|
Equator |
Not visible |
Not visible |
Not visible |
Not visible |
Not visible |
24- |
30o S |
Fairly high at ~05:20 |
Fairly high in the southern sky
at ~05:20 |
Fairly high at ~18:40 |
Fairly high at ~18:40 |
Fairly high in moonlight at
~18:40 |
1- |
C/2021 P4 (ATLAS): A
northern hemisphere evening comet visible in an 8-inch (20 cm) telescope
This comet begins the month in Lynx at magnitude 11.0. Look for
a 2.5' coma. It should brighten by about 1.4 magnitudes by month's end. FINDER
CHART
Latitude |
Visibility June 4 |
Visibility June 11 |
Visibility June 18 |
Visibility June 25 |
Visibility July 2 |
Nights Visible |
55o
N |
Fairly high in the northern sky
during evening twilight at ~23:50 |
Not visible |
Not visible |
Not visible |
Not visible |
1- |
40o
N |
Low in the northern sky during
evening twilight at ~21:20 |
Low in the northern sky during
evening twilight at ~21:20 |
Low in the northern sky during
evening twilight at ~21:20 |
Low in the western sky during
evening twilight at ~21:20 |
Low in the western sky during
evening twilight at ~21:10 |
1- |
Equator |
Not visible |
Not visible |
Very low in the northern sky
during evening twilight at ~19:10 |
Very low in the western sky
during evening twilight at ~19:10 |
Very low in the western sky
during evening twilight at ~19:10 |
1- |
30o S |
Not visible |
Not visible |
Not visible |
Not visible |
Not visible |
|
C/2019 L3 (ATLAS): A
southern hemisphere evening comet visible in an 8-inch (20 cm) telescope
This comet begins the month in Canis Minor at magnitude 10.6.
Look for a 2.5' coma. It should fade slowly. The best visibility is early in the
month as seen from the southern hemisphere. FINDER
CHART
Latitude |
Visibility June 4 |
Visibility June 11 |
Visibility June 18 |
Visibility June 25 |
Visibility July 2 |
Nights Visible |
55o
N |
Not visible |
Not visible |
Not visible |
Not visible |
Not visible |
|
40o
N |
Not visible |
Not visible |
Not visible |
Not visible |
Not visible |
|
Equator |
Fairly high in the western sky
during evening twilight at ~19:10 |
Low in the western sky during
evening twilight at ~19:10 |
Low in the western sky during
evening twilight at ~19:10 |
Not visible |
Not visible |
1-24 |
30o S |
Fairly high in the western sky
during evening twilight at ~18:30 |
Fairly high in the western sky
during evening twilight at ~18:30 |
Low in the western sky during
evening twilight at ~18:30 |
Low in the western sky during
evening twilight at ~18:30 |
Not visible |
1- |
C/2019 T4 (ATLAS): An
evening comet visible in an 8-inch (20 cm) telescope
This comet begins the month in Crater at magnitude 12.1. Look
for a 2' coma. It should fade slowly, moving into Virgo by month's end. FINDER
CHART
Latitude |
Visibility June 4 |
Visibility June 11 |
Visibility June 18 |
Visibility June 25 |
Visibility July 2 |
Nights Visible |
55o
N |
Not visible |
Not visible |
Not visible |
Not visible |
Not visible |
|
40o
N |
Fairly high during evening
twilight at ~21:20 |
Not visible |
Fairly high in the western sky
during evening twilight at ~21:20 |
Fairly high in the western sky
during evening twilight at ~21:20 |
Low in the western sky during
evening twilight at ~21:20 |
1- |
Equator |
High in moonlight at ~19:30 |
Not visible |
High at ~19:30 |
High at ~19:30 |
High in moonlight at ~19:30 |
1- |
30o S |
High in moonlight at ~19:40 |
Not visible |
High at ~18:40 |
High at ~18:40 |
High in moonlight at ~18:40 |
1- |
22P/Kopff: A morning comet
visible in a 12.5-inch (32 cm) telescope
This comet begins the month in Pisces at magnitude 11.8. Look
for a 5.5' coma. It should remain constant, moving into Cetus by month's end.
FINDER CHART
Latitude |
Visibility June 4 |
Visibility June 11 |
Visibility June 18 |
Visibility June 25 |
Visibility July 2 |
Nights Visible |
55o
N |
Not visible |
Not visible |
Not visible |
Not visible |
Not visible |
|
40o
N |
Low in the eastern sky during
morning twilight at ~02:50 |
Low in the eastern sky during
morning twilight at ~02:50 |
Fairly high in the eastern sky
during morning twilight at ~02:50 |
Fairly high in the eastern sky
during morning twilight at ~02:40 |
Fairly high in the eastern sky
during morning twilight at ~02:40 |
1- |
Equator |
High at ~04:40 |
High at ~04:40 |
High during morning twilight at
~04:40 |
High in moonlight at ~04:40 |
High at ~04:40 |
1- |
30o S |
High at ~05:20 |
High at ~05:20 |
High during morning twilight at
~05:30 |
High at ~05:20 |
High at ~05:20 |
1- |
C/2020 R7 (ATLAS): A
southern hemisphere morning comet visible in a 12.5-inch (32 cm) telescope
This comet begins the month in Indus at magnitude 14.0. Look for
a 1.5' coma. It should brighten slowly, moving into Pavo by month's end. The
best visibility is late in the month as seen from the southern hemisphere.
FINDER CHART
Latitude |
Visibility June 4 |
Visibility June 11 |
Visibility June 18 |
Visibility June 25 |
Visibility July 2 |
Nights Visible |
55o
N |
Not visible |
Not visible |
Not visible |
Not visible |
Not visible |
|
40o
N |
Not visible |
Not visible |
Not visible |
Not visible |
Not visible |
|
Equator |
Fairly high in the southern sky
at ~04:40 |
Fairly high in the southern sky
at ~04:10 |
Fairly high in the southern sky
in moonlight at ~03:10 |
Fairly high in the southern sky
at ~02:10 |
Fairly high in the southern sky
at ~01:00 |
1- |
30o S |
High at ~05:00 |
High at ~04:20 |
Fairly high at ~22:10 |
High at ~02:10 |
High at ~01:00 |
1- |
C/2022 E3 (ZTF): A morning
comet visible in a 14-inch (36 cm) telescope
This comet begins the month in Vulpecula at magnitude 14.8. Look
for a 55" coma. It should brighten by about 0.8 magnitudes, moving into
Lyra by month's end. FINDER
CHART
Latitude |
Visibility June 4 |
Visibility June 11 |
Visibility June 18 |
Visibility June 25 |
Visibility July 2 |
Nights Visible |
55o
N |
High during morning twilight at
~00:10 |
High during morning twilight at
~00:10 |
High during morning twilight at
~00:00 |
High during morning twilight at
~00:10 |
High during morning twilight at
~00:00 |
1- |
40o
N |
High at ~02:20 |
High at ~02:30 |
High at ~23:50 |
High at ~01:00 |
High at ~00:10 |
1- |
Equator |
High at ~03:00 |
High at ~03:30 |
High at ~22:50 |
High at ~01:00 |
High at ~00:10 |
1- |
30o S |
Fairly high at ~03:00 |
Fairly high in the northern sky
at ~03:50 |
Fairly high in moonlight at
~01:20 |
Fairly high in the northern sky
at ~01:00 |
Fairly high in the northern sky
at ~00:10 |
1- |
C/2020 V2 (ZTF): A
northern hemisphere evening comet visible in an 18-inch (46 cm) telescope
This comet begins the month in Ursa Major at magnitude 13.4.
Look for a 1' coma. It should brighten slowly. FINDER
CHART
Latitude |
Visibility June 4 |
Visibility June 11 |
Visibility June 18 |
Visibility June 25 |
Visibility July 2 |
Nights Visible |
55o
N |
Fairly high during evening
twilight at ~23:50 |
Not visible |
Not visible |
Not visible |
Not visible |
1-19, 28- |
40o
N |
High in moonlight at ~21:30 |
High during evening twilight at
~21:30 |
Fairly high at ~21:40 |
Fairly high during evening
twilight at ~21:40 |
Fairly high in the northern sky
during evening twilight at ~21:30 |
1- |
Equator |
Fairly high in the northern sky
in moonlight at ~19:20 |
Fairly high in the northern sky
during evening twilight at ~19:10 |
Fairly high in the northern sky
at ~19:20 |
Low in the northern sky during
evening twilight at ~19:20 |
Low in the northern sky during
evening twilight at ~19:20 |
1- |
30o S |
Not visible |
Not visible |
Not visible |
Not visible |
Not visible |
|
19P/Borrelly: A northern
hemisphere evening comet visible in very large telescopes
This comet begins the month in Lynx at magnitude 12.2. Look for
a 2.5' coma. It should fade by about 0.8 magnitudes, moving into Leo Minor by
month's end. FINDER CHART
Latitude |
Visibility June 4 |
Visibility June 11 |
Visibility June 18 |
Visibility June 25 |
Visibility July 2 |
Nights Visible |
55o
N |
Not visible |
Not visible |
Not visible |
Not visible |
Not visible |
|
40o
N |
Fairly high in the western sky
during evening twilight at ~21:20 |
Fairly high in the western sky
during evening twilight at ~21:20 |
Fairly high in the western sky
during evening twilight at ~21:30 |
Fairly high in the western sky
during evening twilight at ~21:30 |
Low in the western sky during
evening twilight at ~21:20 |
1- |
Equator |
Fairly high in the northern sky
during evening twilight at ~19:20 |
Fairly high in the northern sky
during evening twilight at ~19:10 |
Fairly high in the western sky
at ~19:20 |
Fairly high in the western sky
during evening twilight at ~19:20 |
Low in the western sky during
evening twilight at ~19:20 |
1- |
30o S |
Not visible |
Not visible |
Not visible |
Not visible |
Not visible |
|
9P/Tempel: A morning comet
visible in very large telescopes
This comet begins the month in Aquarius at magnitude 13.3. Look
for a 3.5' coma. It should brighten slowly. The best visibility is late in the
month as seen from the southern hemisphere. FINDER
CHART
Latitude |
Visibility June 4 |
Visibility June 11 |
Visibility June 18 |
Visibility June 25 |
Visibility July 2 |
Nights Visible |
55o
N |
Not visible |
Not visible |
Not visible |
Not visible |
Not visible |
|
40o
N |
Low in the southern sky during
morning twilight at ~02:50 |
Low in the southern sky during
morning twilight at ~02:50 |
Not visible |
Fairly high in the southern sky
during morning twilight at ~02:40 |
Fairly high in the southern sky
during morning twilight at ~02:50 |
1-16, 19- |
Equator |
High at ~04:30 |
High at ~04:30 |
Not visible |
High at ~04:30 |
High at ~04:30 |
1-16, 19- |
30o S |
High at ~05:10 |
High at ~05:10 |
High in moonlight at ~02:00 |
High at ~04:50 |
High at ~04:30 |
1-15, 18- |
C/2021 A1 (Leonard): A
southern hemisphere morning comet visible in very large telescopes
This comet begins the month in Corona Australis at magnitude
13.8. Look for a 5' coma. It should fade by about 1.1 magnitudes, moving into
Scorpius by month's end. The best visibility is early in the month as seen from
the southern hemisphere. FINDER
CHART
Latitude |
Visibility June 4 |
Visibility June 11 |
Visibility June 18 |
Visibility June 25 |
Visibility July 2 |
Nights Visible |
55o
N |
Not visible |
Not visible |
Not visible |
Not visible |
Not visible |
|
40o
N |
Not visible |
Not visible |
Not visible |
Not visible |
Not visible |
|
Equator |
High at ~01:10 |
Fairly high at ~03:30 |
High at ~22:40 |
High at ~22:40 |
High at ~22:00 |
1-12, 15- |
30o S |
High at ~01:10 |
High at ~04:10 |
High at ~22:00 |
High at ~22:40 |
High at ~21:50 |
1-12, 15- |
C/2020 K1 (PANSTARRS): An
evening comet visible in very large telescopes
This comet begins the month in Hercules at magnitude 14.3. Look
for a 1' coma. It should brighten slowly. FINDER
CHART
Latitude |
Visibility June 4 |
Visibility June 11 |
Visibility June 18 |
Visibility June 25 |
Visibility July 2 |
Nights Visible |
55o
N |
High during morning twilight at
~00:00 |
Not visible |
Not visible |
Not visible |
High during morning twilight at
~00:00 |
1-8, 27- |
40o
N |
High at ~01:40 |
High at ~02:20 |
High at ~23:40 |
High at ~00:00 |
High at ~23:20 |
1- |
Equator |
High at ~01:40 |
High at ~03:30 |
High at ~22:40 |
High at ~00:00 |
High at ~23:20 |
1-13, 15- |
30o S |
High at ~01:40 |
Fairly high in the western sky
at ~04:00 |
Fairly high at ~22:10 |
High at ~00:00 |
High at ~23:20 |
1-12, 17- |
C/2019 U5 (PANSTARRS): An
evening comet visible in very large telescopes
This comet begins the month in Bootes at magnitude 14.0. Look
for a 55" coma. It should remain constant, moving into Canes Venatici by
month's end. FINDER CHART
Latitude |
Visibility June 4 |
Visibility June 11 |
Visibility June 18 |
Visibility June 25 |
Visibility July 2 |
Nights Visible |
55o
N |
High during evening twilight at
~23:50 |
High during morning twilight at
~00:00 |
High during evening twilight at
~00:00 |
High during evening twilight at
~00:00 |
Fairly high during evening
twilight at ~23:50 |
1- |
40o
N |
High in moonlight at ~22:30 |
Fairly high at ~02:10 |
High at ~21:40 |
High at ~21:40 |
High at ~21:40 |
1- |
Equator |
High at ~21:50 |
High in moonlight at ~19:20 |
High at ~20:10 |
High at ~19:40 |
High in moonlight at ~19:30 |
1- |
30o S |
Low in the northern sky at
~21:30 |
Low in the northern sky in
moonlight at ~20:40 |
Fairly high in the northern sky
at ~20:10 |
Fairly high in the northern sky
at ~19:40 |
Fairly high in the northern sky
in moonlight at ~19:00 |
1- |
116P/Wild: An evening
comet visible in very large telescopes
This comet begins the month in Leo at magnitude 14.0. Look for a
1' coma. It should fade slowly. FINDER
CHART
Latitude |
Visibility June 4 |
Visibility June 11 |
Visibility June 18 |
Visibility June 25 |
Visibility July 2 |
Nights Visible |
55o
N |
Not visible |
Not visible |
Not visible |
Not visible |
Not visible |
|
40o
N |
Fairly high during evening
twilight at ~21:20 |
Fairly high in the western sky
during evening twilight at ~21:10 |
Fairly high in the western sky
during evening twilight at ~21:20 |
Fairly high in the western sky
during evening twilight at ~21:20 |
Low in the western sky during
evening twilight at ~21:20 |
1- |
Equator |
High in moonlight at ~19:20 |
High during evening twilight at
~19:20 |
High at ~19:20 |
High at ~19:30 |
High in moonlight at ~19:30 |
1- |
30o S |
High in moonlight at ~18:40 |
High during evening twilight at
~18:30 |
High at ~18:40 |
High at ~18:40 |
High in moonlight at ~18:40 |
1- |
117P/Helin-Roman-Alu: A
morning comet visible in very large telescopes
This comet begins the month in Sagittarius at magnitude 14.3.
Look for a 1.5' coma. It should brighten slowly. The best visibility is late in
the month as seen from the southern hemisphere. FINDER
CHART
Latitude |
Visibility June 4 |
Visibility June 11 |
Visibility June 18 |
Visibility June 25 |
Visibility July 2 |
Nights Visible |
55o
N |
Not visible |
Not visible |
Not visible |
Not visible |
Not visible |
|
40o
N |
Fairly high in the southern sky
at ~02:10 |
Low in the southern sky at
~02:20 |
Low in the southern sky at
~00:10 |
Low in the southern sky at
~00:40 |
Low in the southern sky at
~00:10 |
1-12, 17- |
Equator |
High at ~02:10 |
High at ~03:30 |
High at ~22:40 |
High at ~00:40 |
High at ~00:10 |
1-13, 16- |
30o S |
High at ~02:10 |
High at ~04:10 |
High at ~22:00 |
High at ~00:40 |
High at ~00:10 |
1-13, 16- |
C/2021 F1
(Lemmon-PANSTARRS): A solar conjunction comet visible in very large telescopes
This comet begins the month in Eridanus at magnitude 12.4. Look
for a 0" coma. It should fade rapidly. FINDER
CHART
Latitude |
Visibility June 4 |
Visibility June 11 |
Visibility June 18 |
Visibility June 25 |
Visibility July 2 |
Nights Visible |
55o
N |
Not visible |
Not visible |
Not visible |
Not visible |
Not visible |
|
40o
N |
Not visible |
Not visible |
Not visible |
Not visible |
Not visible |
|
Equator |
Not visible |
Not visible |
Not visible |
Not visible |
Not visible |
|
30o S |
Not visible |
Not visible |
Not visible |
Not visible |
Not visible |
|
104P/Kowal: An evening
comet visible in very large telescopes
This comet begins the month in Leo at magnitude 14.6. Look for a
1' coma. It should fade by about 1.0 magnitudes, moving into Sextans by month's
end. FINDER CHART
Latitude |
Visibility June 4 |
Visibility June 11 |
Visibility June 18 |
Visibility June 25 |
Visibility July 2 |
Nights Visible |
55o
N |
Not visible |
Not visible |
Not visible |
Not visible |
Not visible |
|
40o
N |
Not visible |
Not visible |
Not visible |
Not visible |
Not visible |
1-2 |
Equator |
High in moonlight at ~19:20 |
Not visible |
High at ~19:20 |
Not visible |
Not visible |
1-4, 15-24 |
30o S |
High in moonlight at ~18:40 |
Not visible |
High at ~18:40 |
Not visible |
Not visible |
1-5, 15-23 |
73P/Schwassmann-Wachmann:
An evening comet visible in very large telescopes
This comet begins the month in Leo at magnitude 15.8. Look for a
40" coma. It should brighten by about 0.9 magnitudes by month's end. FINDER
CHART
Latitude |
Visibility June 4 |
Visibility June 11 |
Visibility June 18 |
Visibility June 25 |
Visibility July 2 |
Nights Visible |
55o
N |
Not visible |
Not visible |
Not visible |
Not visible |
Not visible |
|
40o
N |
Fairly high during evening
twilight at ~21:20 |
Not visible |
Fairly high in the western sky
during evening twilight at ~21:30 |
Fairly high in the western sky
during evening twilight at ~21:20 |
Fairly high in the western sky
during evening twilight at ~21:20 |
1-5, 15- |
Equator |
High in moonlight at ~19:20 |
Not visible |
High at ~19:20 |
High at ~19:30 |
High in moonlight at ~19:30 |
1-5, 14- |
30o S |
Fairly high in moonlight at
~18:40 |
Not visible |
Fairly high at ~18:40 |
Fairly high at ~18:40 |
Fairly high in moonlight at
~18:40 |
1-5, 15- |