Deep Sky Forum's
Objects of the Week - 2023

Observing Guides in all four CSOG image orientations for Deep Sky Forum's Objects of the Week in the year 2023.
Use the buttons to download the Observing Guides, click the object's name to visit the corresponding post on Deep Sky Forum. Please read Downloading CSOG and iPad Astronomy.

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Download - 2023

All Deep Sky Forum's Objects of the Week for the year 2023.

DSF OotW - 2023Index

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2023 - Week 1

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Emission nebula NGC7538 - the "Northern Lagoon Nebula" in Cepheus

Click here for the Constellation editions
Click here for the Herschel edition
Click here for the Burnham's Celestial Handbook - DSO's edition
Click here for the Minkowski nebulae edition
Click here for the Named Objects edition

2023 - Week 2

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Planetary nebula Abell 8 in Auriga

Click here for the Abell Nebulae edition

2023 - Week 3

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Galaxy NGC2683 - the "UFO Galaxy" in Lynx

Click here for the Constellation editions
Click here for the Herschel edition
Click here for the Burnham's Celestial Handbook - DSO's edition
Click here for the Named Objects edition

2023 - Week 4

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Galaxy MCG+02-21-013 in Cancer

2023 - Week 5

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Planetary nebula Simeis 22 - "the Dolphin Nebula" in Cassiopeia

Planetary nebula Simeis 22 (PK 128-04.1) - the "Dolphin Nebula" in Cassiopeia

Click here for the Constellation editions

2023 - Week 6

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Galaxy group IC2375, IC2377 & IC2379 in Puppis

2023 - Week 7

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Double star Theta-1 Orionis - "the Trapezium" and ionized protoplanetary disks 'proplyds' in Orion

2023 - Week 8

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The "Seagull Nebula" in Monoceros & Canis Major

2023 - Week 9

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Galaxy pair PGC33452 (Markarian 421) & PGC33453

2023 - Week 10

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Planetary nebula AFGL 915 - the "Red Rectangle" in Monoceros

2023 - Week 11

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Galaxy group Zwicky VIII 388 - "Zwicky's Necklace" in Virgo

2023 - Week 12

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Galaxy pair Arp 89 (NGC2648 & MCG+02-22-006) in Cancer

Click here for the Constellation editions
Click here for the Herschel edition
Click here for the Arp Peculiar Galaxies edition

2023 - Week 13

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Galaxy pair Holmberg 224 (NGC3507 & NGC3501) in Leo

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Click here for the Herschel edition
Click here for the Holmberg Double and Multiple Galaxies edition

2023 - Week 14

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Galaxy NGC3090 in Sextans

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2023 - Week 15

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Globular cluster Messier 3 (NGC5272) in Canes Venatici

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Click here for the Messier edition
Click here for the Melotte Star Clusters edition
Click here for the Burnham's Celestial Handbook - DSO's edition

2023 - Week 16

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Galaxy MCG+06-24-006 (Vorontsov-Vel'yaminov 794) - the "Spider Galaxy" in Leo Minor

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Click here for the Named Objects edition

2023 - Week 17

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Galaxy group SDSS J084905.43+111450.9, SDSS J084905.42+111451.0 & PGC1390839 in Cancer

2023 - Week 18

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Galaxy NGC4666 - the "Superwind Galaxy" in Virgo

Click here for the Constellation editions
Click here for the Herschel edition
Click here for the Holmberg Double and Multiple Galaxies edition
Click here for the Burnham's Celestial Handbook - DSO's edition
Click here for the Named Objects edition

Galaxy NGC4668 in Virgo

Galaxy NGC4653 in Virgo

Click here for the Constellation editions
Click here for the Herschel edition
Click here for the Burnham's Celestial Handbook - DSO's edition

Galaxy NGC4642 in Virgo

Click here for the Constellation editions
Click here for the Herschel edition

Galaxy NGC4632 in Virgo

Click here for the Constellation editions
Click here for the Herschel edition
Click here for the Burnham's Celestial Handbook - DSO's edition

2023 - Week 19

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Galaxy NGC5253 in Centaurus

Click here for the Constellation editions
Click here for the Herschel edition
Click here for the Dunlop edition
Click here for the Burnham's Celestial Handbook - DSO's edition
Click here for the Bennett edition

2023 - Week 20

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Galaxy NGC2276 (Arp 25) in Cepheus

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Click here for the Arp Peculiar Galaxies edition
Click here for the Burnham's Celestial Handbook - DSO's edition

2023 - Week 21

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Globular clusters Messier 53 (NGC5024) & NGC5053 in Coma Berenices

Click here for the Constellation editions
Click here for the Messier edition
Click here for the Burnham's Celestial Handbook - DSO's edition

2023 - Week 22

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Galaxy NGC5669 in Boötes

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Click here for the Herschel edition
Click here for the Burnham's Celestial Handbook - DSO's edition

2023 - Week 23

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Globular cluster NGC5634 in Virgo

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Click here for the Herschel edition
Click here for the Burnham's Celestial Handbook - DSO's edition
Click here for the Bennett edition

2023 - Week 24

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Galaxy MCG+00-39-023 (Vorontsov-Vel'yaminov 847) in Serpens (Caput)

Click here for the Karachentseva Northern Isolated Triplets of Galaxies (KTG) edition

2023 - Week 25

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Galaxy Messier 100 (NGC4321) in Coma Berenices

Click here for the Constellation editions
Click here for the Messier edition
Click here for the Burnham's Celestial Handbook - DSO's edition

2023 - Week 26

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Globular cluster NGC5897 - the "Ghost Globular" in Libra

Click here for the Constellation editions
Click here for the Herschel edition
Click here for the Melotte Star Clusters edition
Click here for the Burnham's Celestial Handbook - DSO's edition
Click here for the Named Objects edition
Click here for the Bennett edition

2023 - Week 27

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Planetary nebula NGC6578 in Sagittarius

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Click here for the Burnham's Celestial Handbook - DSO's edition

2023 - Week 28

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Galaxy pair KPG 394 (NGC5296 & NGC5297 - the "Hook Galaxy") & PGC2230517 in Canes Venatici

Click here for the Constellation editions
Click here for the Herschel edition
Click here for the Burnham's Celestial Handbook - DSO's edition

2023 - Week 29

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Globular cluster NGC6453 in Scorpius

Click here for the Constellation editions
Click here for the Burnham's Celestial Handbook - DSO's edition
Click here for the Van den Bergh-Hagen star clusters edition

2023 - Week 30

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Emission nebula Sharpless & Osterbrock 15 - the "Zeta Ophiuchi Nebula" in Ophiuchus

2023 - Week 31

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Planetary nebula Kohoutek 3-27 in Lyra

Click here for the Constellation editions

2023 - Week 32

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Reflection nebula IC4592 - the "Blue Horsehead Nebula" in Scorpius

Click here for the Constellation editions
Click here for the Burnham's Celestial Handbook - DSO's edition
Click here for the Named Objects edition

2023 - Week 33

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Open cluster NGC6846 & planetary nebula Kohoutek 4-41 in Cygnus

Click here for the Constellation editions
Click here for the Collinder Clusters edition

2023 - Week 34

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Planetary nebula Henize 1-6 in Vulpecula

Planetary nebula Henize 1-6 (PK 065-05.1) in Vulpecula

2023 - Week 35

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Galaxy group Rose 34 - "Robert's Quartet" in Phoenix

Click here for the Constellation editions
Click here for the Rose Compact Groups of Galaxies edition
Click here for the Named Objects edition

2023 - Week 36

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Galaxy group NGC125, NGC126 & Vorontsov-Vel'yaminov 894 (NGC127, NGC128 & NGC130)

Click here for the Constellation editions
Click here for the Herschel edition
Click here for the Burnham's Celestial Handbook - DSO's edition

2023 - Week 37

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Planetary nebula NGC7048 in Cygnus

Click here for the Constellation editions
Click here for the Burnham's Celestial Handbook - DSO's edition

2023 - Week 38

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Globular cluster Palomar 11 in Aquila

Click here for the Constellation editions
Click here for the Palomar Globular Clusters edition

2023 - Week 39

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The "Heart & Soul Complex" in Cassiopeia

The "Heart Nebula"

The "Fishhead Nebula"

The "Soul Nebula"

2023 - Week 40

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Galaxy group IC1756, IC1757 & SDSS J015712.25-002821.5 in Cetus

Galaxy groups IC1756, IC1757 & SDSS J015712.25-002821.5 in Cetus

2023 - Week 41

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The UGC12127 galaxy group in Pegasus

2023 - Week 42

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Galaxy NGC7727 (Arp 222) in Aquarius

Click here for the Constellation editions
Click here for the Herschel edition
Click here for the Arp Peculiar Galaxies edition
Click here for the Burnham's Celestial Handbook - DSO's edition

2023 - Week 43

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Planetary nebula Pease 1 in Pegasus

Planetary nebula Pease 1 (PK 065-27.1) in Pegasus

2023 - Week 44

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Galaxy NGC253 - the "Silver Coin Galaxy" in Sculptor

Click here for the Constellation editions
Click here for the Herschel edition
Click here for the Sculptor Group edition
Click here for the Burnham's Celestial Handbook - DSO's edition
Click here for the Named Objects edition
Click here for the ASSA Top-100 edition
Click here for the Bennett edition
Click here for the Caldwell edition

2023 - Week 45

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Galaxy NGC918 and molecular clouds PGCC G152.05-39.03 & PGCC G152.05-39.03 in Aries

Click here for the Constellation editions

2023 - Week 46

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Reflection nebula Neckel-Staude 2 & dark nebula Lynds 1299 in Cassiopeia

2023 - Week 47

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Galaxies SDSS J023915.24-080657.8 & PGC3097693 in Cetus

2023 - Week 48

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Planetary nebula Simeis 280 in Cassiopeia

2023 - Week 49

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Galaxy group Hickson 18 in Aries

2023 - Week 50

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Globular cluster Messier 79 (NGC1904) in Lepus

Click here for the Constellation editions
Click here for the Messier edition
Click here for the Melotte Star Clusters edition
Click here for the Burnham's Celestial Handbook - DSO's edition
Click here for the Bennett edition

2023 - Week 51

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Galaxy NGC404 - "Mirach's Ghost" in Andromeda

Click here for the Constellation editions
Click here for the Herschel edition
Click here for the Burnham's Celestial Handbook - DSO's edition
Click here for the Named Objects edition

2023 - Week 52

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Galaxy MCG+02-33-041 (Vorontsov-Vel'yaminov 558) - "Imprint of a Foot" in Virgo

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Click here for the Named Objects edition

2023 - Week 53

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Reflection nebulae Messier 78 (NGC2068), NGC2067 & NGC2064 and dark nebula Lynds 1627 in Orion

Click here for the Constellation editions
Click here for the Messier edition
Click here for the Berkeley Star Clusters edition
Click here for the Palomar Globular Clusters edition
Click here for the Burnham's Celestial Handbook - DSO's edition
Click here for the Named Objects edition

Deep Sky Forum'sObjects of the Week - 2023

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Deep Sky Forum's
Objects of the Week - 2023

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