2022 |
Messier 107
Globular cluster in Ophiucus
7.9 apparent magnitude
10’ in size
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Arp 272
A trio of interacting galaxies in Hercules
15th to 17th magnitude apparent brightness
0.9’ x 0.7’ apparent size
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NGC 6692
A pair of interacting galaxies in Lyra
11th magnitude in brightness
1’ x 0.5’ apparent size
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Mons Pico
A solitary mountain lying in the northern part of Mare Imbrium
2500m high
25km x 15km in size
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2021 |
Messier 84
NGC 4374
Lenticular galaxy in Virgo
55M ly away
10th magnitude
6’.5x5’.6 apparent size |
NGC 5689
Lenticular galaxy in Boötes
11.9 magnitude
120M ly away
3’.66x0’.91 apparent size |
Abell Galaxy Cluster 2065
Galaxy Cluster in Corona Borealis
1.2B ly away
Spans 22.4’ |
Crater Posidonius
Impact crater in Lacus Somniorum
2.3km deep
95km in diameter
13 total craterlets: A B C D E F G J M
N P W Y Z. Half the alphabet! |
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2020 |
Messier 64
AKA “Black Eye Galaxy”
Spiral Galaxy in Coma Berenices
~8th magnitude
10.7’ x 5.1’ apparent size
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NGC 5529
Spiral Galaxy in Boötes
11th Magnitude in brightness
6.2’ x 0.8’ apparent size
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NGC 6578
Planetary Nebula in Sagittarius
13.5th magnitude
8”x8” size
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Crater Catharina
Ancient lunar impact crater
Located near Rupes Altai
100km wide
3.1km deep
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2019 |
Messier 13
AKA NGC 6205
Globular Cluster in Hercules
~22,200–25,000 light-years away
Apparent magnitude ~5.8
~23' diameter
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NGC 3172
AKA "Polarissima Borealis" is a galaxy in Ursa Minor
Closest NGC object to the north celestial pole
~280 Mly distant
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GC 6197
A 15th-magnitude lenticular galaxy (type SB0/a?) in Hercules
~454 Mly distant
"extremely faint, extended, stellar"
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Rimae Alphonsus
Rille system on the floor of crater Alphosus.
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2018 |
Messier 8
AKA The Lagoon Nebula
Emission Nebula in the constellation Sagittarius
Also known as NGC6523 |
The Cat’s Eye Nebula
Catalogued as NGC 6543
Planetary nebula in Draco
Mag 8.1 with 10.9 central star |
Seyfert’s Sextet
Known to many as Hickson Compact Galaxy Group 79
Tight gathering of galaxies in the northern corner of Serpens Caput
NGC 6127 & NGC 6027 [A-E] |
Schröter’s Valley
Located in Oceanus Procellarum
Named for the German selenographer Johannes Schröter
Originates at a 6.4km wide crater 24km north of Herodotus
24km long narrowing to 400m at its thinnest |
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