C/2017
K2 (PANSTARRS): An evening comet visible in binoculars
This comet begins the month in Ophiuchus at magnitude 8.3. Look
for a 5' coma. It should brighten slowly, moving into Scorpius by month's end.
The best visibility is late in the month as seen from the southern hemisphere.
FINDER CHART
Latitude |
Visibility July 30 |
Visibility August 6 |
Visibility August 13 |
Visibility August 20 |
Visibility August 27 |
Nights Visible |
55o
N |
Low in the southern sky during
evening twilight at ~22:50 |
Not visible |
Not visible |
Not visible |
Not visible |
1-30 |
40o
N |
Fairly high at ~21:10 |
Fairly high in the western sky
in moonlight at ~22:30 |
Fairly high in the southern sky
during evening twilight at ~20:40 |
Fairly high in the southern sky
during evening twilight at ~20:20 |
Low in the southern sky during
evening twilight at ~20:10 |
1- |
Equator |
High at ~20:00 |
Fairly high in the western sky
in moonlight at ~23:20 |
High at ~19:30 |
High at ~19:20 |
High at ~19:20 |
1- |
30o S |
High at ~20:00 |
Fairly high in the western sky
in moonlight at ~23:30 |
High at ~19:10 |
High at ~19:10 |
High at ~19:10 |
1- |
73P/Schwassmann-Wachmann:
An evening comet visible in a 6-inch (15 cm) telescope
This comet begins the month in Virgo at magnitude 12.2. Look for
a 55" coma. It should brighten by about 0.7 magnitudes by month's end. The
best visibility is late in the month as seen from the southern hemisphere.
FINDER CHART
Latitude |
Visibility July 30 |
Visibility August 6 |
Visibility August 13 |
Visibility August 20 |
Visibility August 27 |
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 |
1-29, 31- |
Equator |
Fairly high during evening
twilight at ~19:20 |
Fairly high during evening
twilight at ~19:20 |
Fairly high during evening
twilight at ~19:20 |
Fairly high during evening
twilight at ~19:20 |
Fairly high during evening
twilight at ~19:10 |
1- |
30o S |
Fairly high at ~18:50 |
Fairly high during evening
twilight at ~18:50 |
Fairly high at ~19:00 |
Fairly high at ~19:00 |
Fairly high at ~19:00 |
1- |
C/2022 E3 (ZTF): An
evening comet visible in a 6-inch (15 cm) telescope
This comet begins the month in Hercules at magnitude 13.0. Look
for a 55" coma. It should brighten by about 0.7 magnitudes by month's end.
FINDER CHART
Latitude |
Visibility July 30 |
Visibility August 6 |
Visibility August 13 |
Visibility August 20 |
Visibility August 27 |
Nights Visible |
55o
N |
High during evening twilight at
~23:30 |
High during evening twilight at
~22:50 |
High during evening twilight at
~21:50 |
High during evening twilight at
~21:50 |
High during evening twilight at
~21:30 |
1- |
40o
N |
High at ~21:20 |
High at ~23:20 |
High during evening twilight at
~20:40 |
High at ~20:30 |
High at ~20:20 |
1- |
Equator |
High at ~21:10 |
High in moonlight at ~20:40 |
High at ~19:30 |
High at ~19:20 |
High at ~19:20 |
1- |
30o S |
Fairly high in the northern sky
at ~21:00 |
Fairly high in the northern sky
in moonlight at ~20:20 |
Fairly high in the northern sky
at ~19:30 |
Fairly high in the northern sky
during evening twilight at ~18:50 |
Fairly high in the northern sky
at ~19:00 |
1- |
C/2020 V2 (ZTF): A
far-northern morning comet visible in a 12.5-inch (32 cm) telescope
This comet begins the month in Ursa Major at magnitude 12.9.
Look for a 1' coma. It should brighten slowly. FINDER
CHART
Latitude |
Visibility July 30 |
Visibility August 6 |
Visibility August 13 |
Visibility August 20 |
Visibility August 27 |
Nights Visible |
55o
N |
Fairly high in the northern sky
during evening twilight at ~23:30 |
Fairly high in the northern sky
during evening twilight at ~23:00 |
Fairly high in the northern sky
during evening twilight at ~22:10 |
Fairly high in the northern sky
during evening twilight at ~22:00 |
Fairly high in the northern sky
during morning twilight at ~02:30 |
1- |
40o
N |
Low in the northern sky during
evening twilight at ~21:00 |
Low in the northern sky during
evening twilight at ~20:50 |
Low in the northern sky during
evening twilight at ~20:40 |
Low in the northern sky during
evening twilight at ~20:20 |
Low in the northern sky during
morning twilight at ~03:50 |
1- |
Equator |
Not visible |
Not visible |
Not visible |
Not visible |
Not visible |
|
30o S |
Not visible |
Not visible |
Not visible |
Not visible |
Not visible |
|
117P/Helin-Roman-Alu: An
evening comet visible in a 14-inch (36 cm) telescope
This comet begins the month in Sagittarius at magnitude 13.4.
Look for a 1' coma. It should fade slowly. The best visibility is early in the
month as seen from the southern hemisphere. FINDER
CHART
Latitude |
Visibility July 30 |
Visibility August 6 |
Visibility August 13 |
Visibility August 20 |
Visibility August 27 |
Nights Visible |
55o
N |
Not visible |
Not visible |
Not visible |
Not visible |
Not visible |
|
40o
N |
Low in the southern sky at
~22:00 |
Low in the southern sky in
moonlight at ~22:20 |
Low in the southern sky at
~20:50 |
Low in the southern sky at
~20:30 |
Low in the southern sky during
evening twilight at ~20:00 |
1- |
Equator |
High at ~22:00 |
Fairly high at ~00:50 |
High at ~19:50 |
High at ~20:30 |
High at ~20:00 |
1- |
30o S |
High at ~22:00 |
Fairly high at ~01:40 |
High at ~19:30 |
High at ~20:30 |
High at ~20:00 |
1- |
C/2020 K1 (PANSTARRS): An
evening comet visible in a 16-inch (41 cm) telescope
This comet begins the month in Ophiuchus at magnitude 13.6. Look
for a 60" coma. It should remain constant. FINDER
CHART
Latitude |
Visibility July 30 |
Visibility August 6 |
Visibility August 13 |
Visibility August 20 |
Visibility August 27 |
Nights Visible |
55o
N |
Fairly high during evening
twilight at ~23:20 |
Fairly high during evening
twilight at ~22:50 |
Fairly high during evening
twilight at ~21:50 |
Fairly high during evening
twilight at ~21:50 |
Fairly high in the southern sky
during evening twilight at ~21:20 |
1- |
40o
N |
High at ~21:20 |
Fairly high at ~23:20 |
High during evening twilight at
~20:40 |
High at ~20:40 |
High at ~20:20 |
1- |
Equator |
High at ~21:00 |
Fairly high in the western sky
at ~00:40 |
High at ~19:50 |
High at ~19:30 |
High at ~19:20 |
1- |
30o S |
High at ~21:00 |
High in moonlight at ~22:30 |
High at ~19:30 |
High at ~19:30 |
High at ~19:10 |
1- |
C/2021 E3 (ZTF): A
southern hemisphere evening comet visible in an 18-inch (46 cm) telescope
This comet begins the month in Vela at magnitude 11.2. Look for
a 3.5' coma. It should fade by about 0.9 magnitudes, moving into Antlia by
month's end. The best visibility is early in the month as seen from the southern
hemisphere. FINDER CHART
Latitude |
Visibility July 30 |
Visibility August 6 |
Visibility August 13 |
Visibility August 20 |
Visibility August 27 |
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 |
Fairly high in the western sky
during evening twilight at ~18:50 |
Low in the western sky during
evening twilight at ~18:50 |
Low in the western sky during
evening twilight at ~18:50 |
Not visible |
Low in the eastern sky during
morning twilight at ~05:10 |
1- |
C/2019 L3 (ATLAS): A
southern hemisphere morning comet visible in very large telescopes
This comet begins the month in Hydra at magnitude 11.1. Look for
a 2' coma. It should fade slowly. The best visibility is late in the month as
seen from the southern hemisphere. FINDER
CHART
Latitude |
Visibility July 30 |
Visibility August 6 |
Visibility August 13 |
Visibility August 20 |
Visibility August 27 |
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 |
30- |
30o S |
Not visible |
Not visible |
Not visible |
Not visible |
Very low in the eastern sky
during morning twilight at ~05:10 |
21- |
22P/Kopff: A morning comet
visible in very large telescopes
This comet begins the month in Pisces at magnitude 12.2. Look
for a 4.5' coma. It should remain constant. FINDER
CHART
Latitude |
Visibility July 30 |
Visibility August 6 |
Visibility August 13 |
Visibility August 20 |
Visibility August 27 |
Nights Visible |
55o
N |
Fairly high in the eastern sky
during morning twilight at ~01:10 |
Fairly high in the eastern sky
during morning twilight at ~01:30 |
Fairly high during morning
twilight at ~02:10 |
Fairly high during morning
twilight at ~02:10 |
Fairly high at ~02:30 |
1-13, 17- |
40o
N |
High at ~03:10 |
High at ~03:10 |
High during morning twilight at
~03:40 |
High in moonlight at ~03:10 |
High at ~03:20 |
1-13, 17- |
Equator |
High at ~04:40 |
High at ~04:30 |
Not visible |
High at ~01:50 |
High at ~03:20 |
1-11, 16- |
30o S |
High at ~05:00 |
High at ~04:40 |
Not visible |
High at ~02:50 |
High at ~03:20 |
1-12, 16- |
C/2019 T4 (ATLAS): A
southern hemisphere evening comet visible in very large telescopes
This comet begins the month in Virgo at magnitude 12.8. Look for
a 1.5' coma. It should fade slowly. The best visibility is early in the month as
seen from the southern hemisphere. FINDER
CHART
Latitude |
Visibility July 30 |
Visibility August 6 |
Visibility August 13 |
Visibility August 20 |
Visibility August 27 |
Nights Visible |
55o
N |
Not visible |
Not visible |
Not visible |
Not visible |
Not visible |
|
40o
N |
Low in the western sky during
evening twilight at ~20:40 |
Not visible |
Not visible |
Not visible |
Not visible |
|
Equator |
Fairly high at ~19:20 |
Fairly high during evening
twilight at ~19:20 |
Fairly high in the western sky
during evening twilight at ~19:20 |
Fairly high in the western sky
during evening twilight at ~19:20 |
Low in the western sky during
evening twilight at ~19:10 |
1- |
30o S |
High at ~18:50 |
Fairly high during evening
twilight at ~18:50 |
Fairly high at ~19:00 |
Fairly high in the western sky
at ~19:00 |
Fairly high in the western sky
during evening twilight at ~19:00 |
1- |
C/2020 R7 (ATLAS): A
southern hemisphere evening comet visible in very large telescopes
This comet begins the month in Ara at magnitude 13.5. Look for a
1.5' coma. It should fade slowly, 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 July 30 |
Visibility August 6 |
Visibility August 13 |
Visibility August 20 |
Visibility August 27 |
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 at ~21:00 |
Fairly high in moonlight at
~20:40 |
High at ~19:40 |
High at ~19:30 |
High at ~19:20 |
1- |
30o S |
High at ~21:00 |
Fairly high in the western sky
at ~01:40 |
High at ~19:30 |
High at ~19:10 |
High at ~19:10 |
1- |
C/2019 U5 (PANSTARRS): An
evening comet visible in very large telescopes
This comet begins the month in Canes Venatici at magnitude 14.0.
Look for a 50" coma. It should remain constant, moving into Coma Berenices
by month's end. FINDER
CHART
Latitude |
Visibility July 30 |
Visibility August 6 |
Visibility August 13 |
Visibility August 20 |
Visibility August 27 |
Nights Visible |
55o
N |
Fairly high in the western sky
during evening twilight at ~23:00 |
Fairly high in the western sky
during evening twilight at ~22:30 |
Fairly high in the western sky
during evening twilight at ~21:50 |
Low in the western sky during
evening twilight at ~21:40 |
Low in the western sky during
evening twilight at ~21:10 |
1- |
40o
N |
Fairly high during evening
twilight at ~21:00 |
Fairly high during evening
twilight at ~20:50 |
Fairly high during evening
twilight at ~20:40 |
Fairly high in the western sky
during evening twilight at ~20:30 |
Fairly high in the western sky
during evening twilight at ~20:10 |
1- |
Equator |
High at ~19:30 |
Fairly high in moonlight at
~19:20 |
Fairly high at ~19:20 |
Fairly high in the western sky
at ~19:20 |
Fairly high in the western sky
during evening twilight at ~19:10 |
1- |
30o S |
Fairly high in the northern sky
during evening twilight at ~18:50 |
Fairly high in the northern sky
during evening twilight at ~18:50 |
Fairly high in the northern sky
during evening twilight at ~18:50 |
Low in the western sky during
evening twilight at ~18:50 |
Low in the western sky during
evening twilight at ~18:50 |
1- |
116P/Wild: A southern
hemisphere evening comet visible in very large telescopes
This comet begins the month in Virgo at magnitude 14.3. Look for
a 50" coma. It should fade slowly. The best visibility is early in the
month as seen from the southern hemisphere. FINDER
CHART
Latitude |
Visibility July 30 |
Visibility August 6 |
Visibility August 13 |
Visibility August 20 |
Visibility August 27 |
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 ~19:20 |
Fairly high in the western sky
during evening twilight at ~19:20 |
Fairly high in the western sky
during evening twilight at ~19:20 |
Fairly high in the western sky
during evening twilight at ~19:10 |
Low in the western sky during
evening twilight at ~19:10 |
1- |
30o S |
Fairly high at ~18:50 |
Fairly high in the western sky
during evening twilight at ~18:50 |
Fairly high in the western sky
at ~19:00 |
Fairly high in the western sky
during evening twilight at ~19:00 |
Fairly high in the western sky
during evening twilight at ~19:00 |
1- |