Webb Deep-Sky Society's
Objects of the Month - 2021
Observing guides for the Webb Deep-Sky Society's galaxy, nebula, star cluster and double stars of the month in the year 2021.
Use the button(s) to download the objects of the month in the image orientation of your choice, click the object's name to visit the corresponding page on the Webb-site. Please read Downloading CSOG and iPad Astronomy.
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Download - 2021
All the Webb Deep-Sky Society's Objects of the Month for the year 2021.
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January 2021
Galaxy of the Month
Galaxy group Holmberg 124 in Ursa Major
Click here for the Holmberg Double and Multiple Galaxies edition
Click here for the KTG edition
Star Clusters of the Month
Click here for the Constellation editions
Click here for the Trumpler open cluster edition
Click here for the Collinder open cluster edition
Click here for the Constellation editions
Open cluster NGC2158 in Gemini
Click here for the Constellation editions
Click here for the Herschel edition
Click here for the Collinder star clusters edition
Click here for the Melotte star clusters edition
Click here for the Raab open clusters edition
Open cluster Messier 35 (NGC2168) in Gemini
Click here for the Messier edition
Click here for the Constellation editions
Click here for the Collinder star clusters edition
Click here for the Melotte star clusters edition
Click here for the Raab open clusters edition
Nebula of the Month
Reflection nebula NGC2261 - "Hubble's Variable Nebula" in Monoceros
Click here for the Constellation editions
Click here for the Herschel edition
Click here for the Named Objects edition
Double Stars of the Month
32 Orionis (STF728 - WDS05308+0557) in Orion
Click here for the Struve Double Stars edition
"Mintaka" - Delta Orionis (STFA14 - WDS05320-0018) in Orion
Click here for the Struve Double Stars edition
February 2021
Galaxy of the Month
Galaxy group WBL 142 in Gemini
Click here for the Constellation editions
Click here for the Herschel edition
Star Cluster of the Month
Click here for the Constellation editions
Click here for the Herschel edition
Nebula of the Month
Planetary nebula NGC2610 in Hydra
Click here for the Constellation editions
Click here for the Herschel edition
Double Stars of the Month
Phi-2 Cancri (STF1223 - WDS08268+2656) in Cancer
Click here for the Struve Double Stars edition
Upsilon Cancri (STF1224 - WDS08267+2432) in Cancer
Click here for the Struve Double Stars edition
Pi Puppis (Dunlop 43 - WDS07171-3706) in Puppis
March 2021
Galaxy of the Month
Click here for the Arp Peculiar Galaxies edition
Click here for the Holmberg Double and Multiple Galaxies edition
Star Cluster of the Month
Asterism NGC3231 in Ursa Major
Click here for the Constellation editions
Nebula of the Month
Planetary nebula NGC3242 - the "Ghost of Jupiter" in Hydra
Click here for the Constellation editions
Click here for the Herschel edition
Click here for the Named Objects edition
Double Stars of the Month
STF1426 (WDS10205+0626) in Leo
Click here for the Struve Double Stars edition
Burnham 208 (WDS08391-2240) in Pyxis
April 2021
Galaxy of the Month
Galaxy pair NGC3636 & NGC3637 in Crater
Click here for the Constellation editions
Click here for the Herschel edition
Star Cluster of the Month
Globular cluster Messier 3 (NGC5272) in Canes Venatici
Click here for the Messier edition
Nebula of the Month
Planetary nebula IC3568 - the "Lemon Slice Nebula" in Camelopardalis
Click here for the Constellation editions
Click here for the Named Objects edition
Double Stars of the Month
35 Sextantis (STF1466 - WDS10433+0445) in Sextans
Click here for the Struve Double Stars edition
Cape Observatory 12 (WDS12283-6146) in Crux
May 2021
Galaxy of the Month
Click here for the Arp Peculiar Galaxies edition
Click here for the Holmberg Double and Multiple Galaxies edition
Click here for the KTG edition
Star Cluster of the Month
Globular cluster NGC5634 in Virgo
Click here for the Constellation editions
Click here for the Herschel edition
Nebula of the Month
Planetary nebula NGC6058 in Hercules
Click here for the Constellation editions
Click here for the Herschel edition
Double Stars of the Month
1 Boötis (STF1772 - WDS13407+1957) in Boötes
Click here for the Struve Double Stars edition
June 2021
Galaxy of the Month
Click here for the Constellation editions
Click here for the Herschel edition
Star Cluster of the Month
Globular cluster Messier 107 (NGC6171) in Ophiuchus
Click here for the Messier edition
Nebula of the Month
Planetary nebula NGC6210 - the "Turtle Planetary Nebula" in Hercules
Click here for the Constellation editions
Click here for the Named Objects edition
Double Stars of the Month
STF1972 (WDS15292+8027) in Ursa Minor
Click here for the Struve Double Stars edition
Herschel VI 51 (WDS14576-0010) in Virgo
Burnham 348 (WDS15018-0008) in Virgo
July 2021
Galaxy of the Month
Click here for the Constellation editions
Star Cluster of the Month
Open cluster NGC6633 - the "Wasp-Waist Cluster" in Ophiuchus
Click here for the Constellation editions
Click here for the Herschel edition
Click here for the Named Objects edition
Click here for the Collinder star clusters edition
Click here for the Melotte star clusters edition
Click here for the Raab open clusters edition
Nebula of the Month
Planetary nebula NGC6742 in Draco
Click here for the Constellation editions
Click here for the Herschel edition
Click here for the Abell Nebulae edition
Double Stars of the Month
STF2244 (WDS17571+0004) in Ophiuchus
Click here for the Struve Double Stars edition
Kappa-2 Coronae Australis (Dunlop 222 - WDS18334-3844) in Coronae Australis
August 2021
Galaxy of the Month
Galaxy pair NGC6658 & NGC6661 in Hercules
Click here for the Constellation editions
Star Cluster of the Month
Open cluster NGC6940 - the "Mothra Cluster" in Vulpecula
Click here for the Constellation editions
Click here for the Herschel edition
Click here for the Named Objects edition
Click here for the Collinder star clusters edition
Click here for the Melotte star clusters edition
Click here for the Raab open clusters edition
Nebula of the Month
Planetary nebula NGC7008 - the "Fetus Nebula" in Cygnus
Click here for the Constellation editions
Click here for the Herschel edition
Click here for the Named Objects edition
Double Stars of the Month
STT358 (WDS18359+1659) in Hercules
Click here for the Struve Double Stars edition
"Arkab Prior" - Beta-1 Sagittarii (Dunlop 226 - WDS19226-4428) in Sagittarius
September 2021
Galaxy of the Month
Galaxy group Holmberg 802 in Pegasus
Click here for the Holmberg Double and Multiple Galaxies edition
Star Cluster of the Month
Open cluster Mayer 1 and emission nebula Sharpless 173 in Cassiopeia
Click here for the Constellation editions
Nebula of the Month
Planetary nebula NGC7354 in Cepheus
Click here for the Constellation editions
Click here for the Herschel edition
Double Stars of the Month
STF2883 (WDS22106+7008) in Cepheus
Click here for the Struve Double Stars edition
Harvard 298 (WDS22183-5338) in Grus
October 2021
Galaxy of the Month
Galaxies NGC870, NGC871, NGC876 & NGC877 in Aries
Click here for the Constellation editions
Star Cluster of the Month
Open clusters NGC133, NGC146 & King 14 in Cassiopeia
Click here for the Constellation editions
Click here for the King open clusters edition
Nebula of the Month
Planetary nebula NGC246, the "Skull Nebula" in Cetus
Click here for the Constellation editions
Click here for the Herschel edition
Click here for the Named Objects edition
Double Stars of the Month
STF3053 (WDS00026+6606) in Cassiopeia
Click here for the Struve Double Stars edition
STF3008 (WDS23238-0828) in Aquarius
Click here for the Struve Double Stars edition
November 2021
Galaxy of the Month
Galaxy cluster Abell 347 in Andromeda
Star Cluster of the Month
Open cluster NGC1245 - the "Patrick Starfish Cluster" in Perseus
Click here for the Constellation editions
Click here for the Herschel edition
Click here for the Named Objects edition
Click here for the Collinder star clusters edition
Click here for the Melotte star clusters edition
Click here for the Raab open clusters edition
Nebula of the Month
Planetary nebula IC2003 in Perseus
Click here for the Constellation editions
Double Stars of the Month
Phi Andromedae - STT515 (WDS01095+4715) in Andromeda
Click here for the Struve Double Stars edition
66 Ceti - STF231 (WDS02128-0224) in Cetus
Click here for the Struve Double Stars edition
December 2021
Galaxy of the Month
Click here for the Constellation editions
Star Cluster of the Month
Open cluster and emission nebula NGC1624 in Perseus
Click here for the Constellation editions
Click here for the Herschel edition
Click here for the Collinder star clusters edition
Nebula of the Month
Emission nebula NGC1579 - the "Northern Trifid Nebula" in Perseus
Click here for the Constellation editions
Click here for the Herschel edition
Click here for the Named Objects edition
Double Stars of the Month
STT65 (WDS03503+2535) in Taurus
Click here for the Struve Double Stars edition
Dunlop 15 (WDS03398-4022) in Eridanus
