Galaxies in Vir/Com

I imaged a wide region on the border of Virgo and Coma Berenices, full of galaxies, members of the Virgo Cluster.

This area of our sky is very far from the Milky Way’s galactic plane making it fairly blank, thus acts like a window to see beyond it.  This region features objects well known to amateurs, like many Messier galaxies and Markarian’s Chain (formed by, among others, M84 and M86).

The prominent objects are :

• M 84, NGC 4374 [galaxy in Vir] 9.4^m [wiki]
• M 86, NGC 4406 [galaxy in Vir] 9^m [wiki]
• M 87, NGC 4486 [galaxy in Vir] Virgo A 8.8^m [wiki]
• M 88, NGC 4501 [galaxy in Com] 9.7^m [wiki]
• M 99, NGC 4254 [galaxy in Com]* 9.7^m [wiki]
• M 100, NGC 4321 [galaxy in Com] 9.7^m [wiki]

To identify the objects, I used astrometry.net’s platesolving tool. Further on, I developed my own annotater which is based on astrometry’s plate solving and my DSO. So objects in the frame, but not necessarely visible:

• M 88, NGC 4501 [galaxy in Com] 9.7^m [wiki] [simbad]
• M 100, NGC 4321 [galaxy in Com] 9.7^m [wiki] [simbad]
• M 99, NGC 4254 [galaxy in Com] Pin-wheel nebula, St. Katherine’s Wheel, Coma Pinwheel Galaxy 9.7^m [wiki] [simbad]
• NGC 4473 [galaxy in Com] 10.1^m [wiki] [simbad]
• NGC 4477 [galaxy in Com] 10.4^m [wiki] [simbad]
• NGC 4459 [galaxy in Com] 10.4^m [wiki] [simbad]
• NGC 4212 [galaxy in Com] 11.1^m [wiki] [simbad]
• NGC 4212 [galaxy in Com] 11.3^m [wiki] [simbad]
• NGC 4419 [galaxy in Com] 11.4^m [wiki] [simbad]
• NGC 4262 [galaxy in Com] 11.5^m [wiki] [simbad]
• NGC 4379 [galaxy in Com] 11.6^m [wiki] [simbad]
• NGC 4531 [galaxy in Vir] 11.6^m [wiki] [simbad]
• NGC 4298 [galaxy in Com] 11.6^m [wiki] [simbad]
• NGC 4421 [galaxy in Com] 11.8^m [wiki] [simbad]
• NGC 4474 [galaxy in Com] 11.8^m [wiki] [simbad]
• NGC 4237 [galaxy in Com] 11.9^m [wiki] [simbad]
• NGC 4377 [galaxy in Com] 11.9^m [wiki] [simbad]
• NGC 4312 [galaxy in Com] 12.1^m [wiki] [simbad]
• NGC 4458 [galaxy in Vir] 12.1^m [wiki] [simbad]
• NGC 4405 [galaxy in Com] 12.2^m [wiki] [simbad]
• NGC 4302 [galaxy in Com] 12.2^m [wiki] [simbad]
• NGC 4479 [galaxy in Com] 12.6^m [wiki] [simbad]
• NGC 4396 [galaxy in Com] 12.7^m [wiki] [simbad]
• NGC 4506 [galaxy in Com] 12.9^m [wiki] [simbad]
• NGC 4516 [galaxy in Com] 13^m [wiki] [simbad]
• NGC 4468 [galaxy in Com] 13^m [wiki] [simbad]
• IC 3392 [galaxy in Com] 13.07^m [simbad]
• IC 3476 [galaxy in Com] 13.36^m [simbad]
• PGC 41377, NGC 4486A [galaxy in -n/a] 13.38^m [wiki] [simbad]
• NGC 4328 [galaxy in Com] 13.4^m [wiki] [simbad]
• IC 797 [galaxy in Com] 13.67^m [simbad]
• NGC 4323 [galaxy in Com] 13.8^m [wiki] [simbad]
• NGC 4322 [* in Com] 13.9^m [wiki] [simbad]
• NGC 4447 [galaxy in Com] 14^m [wiki] [simbad]
• NGC 4446 [galaxy in Com] 14.1^m [wiki] [simbad]
• IC 3061 [galaxy in Com] 14.32^m [simbad]
• IC 3065 [galaxy in Com] 14.35^m [simbad]
• IC 3365 [galaxy in Com] 14.39^m [simbad]
• IC 3478 [galaxy in Com] 14.42^m [simbad]
• IC 781 [galaxy in Com] 14.42^m [simbad]
• IC 3091 [galaxy in Com] 14.49^m [simbad]
• IC 3442 [galaxy in Com] 14.52^m [simbad]
• IC 3501 [galaxy in Com] 14.6^m [simbad]
• IC 3238 [galaxy in Com] 14.67^m [simbad]
• PGC 39319 [galaxy in -n/a] 14.69^m [simbad]
• PGC 40819 [galaxy in -n/a] 14.72^m [simbad]
• IC 783 [galaxy in Com] 14.74^m [simbad]
• IC 3492 [galaxy in Vir] 14.74^m [simbad]
• PGC 40066, UGC 07436 [galaxy in -n/a] 14.76^m [simbad]
• IC 3096 [galaxy in Com] 14.78^m [simbad]
• IC 3093 [galaxy in Com] 14.79^m [simbad]
• IC 3432 [galaxy in Com] 14.81^m [simbad]
• PGC 39306 [galaxy in -n/a] 14.88^m [simbad]
• IC 787 [galaxy in Com] 14.89^m [simbad]
• IC 3313 [galaxy in Com] 14.97^m [simbad]
• PGC 39060 [galaxy in -n/a] 14.99^m [simbad]
• IC 3244 [galaxy in Com] 14.99^m [simbad]
• IC 3077 [galaxy in Com] 15.01^m [simbad]
• IC 3080 [galaxy in Com] 15.02^m [simbad]
• PGC 40002, UGC 07425 [galaxy in -n/a] 15.06^m [simbad]
• IC 3327 [galaxy in Com] 15.09^m [simbad]
• IC 3500 [galaxy in Com] 15.17^m [simbad]
• PGC 41709 [galaxy in -n/a] 15.19^m [simbad]
• PGC 40818 [galaxy in -n/a] 15.2^m [simbad]
• IC 3567 [galaxy in Com] 15.21^m [simbad]
• IC 3453 [galaxy in Com] 15.25^m [simbad]
• PGC 169474 [galaxy in -n/a] 15.28^m [simbad]
• IC 3520 [galaxy in Com] 15.28^m [simbad]
• IC 3053 [galaxy in Com] 15.3^m [simbad]
• PGC 40547 [galaxy in -n/a] 15.33^m [simbad]
• PGC 39619 [galaxy in -n/a] 15.36^m [simbad]
• IC 3344 [galaxy in Com] 15.45^m [simbad]
• IC 3120 [galaxy in Com] 15.51^m [simbad]
• IC 3435 [galaxy in Com] 15.51^m [simbad]
• PGC 39956 [galaxy in -n/a] 15.51^m [simbad]
• PGC 165126 [galaxy in -n/a] 15.63^m [simbad]
• PGC 41237 [galaxy in -n/a] 15.72^m [simbad]
• PGC 40893 [galaxy in -n/a] 15.77^m [simbad]
• PGC 40130 [galaxy in -n/a] 15.84^m [simbad]
• PGC 169369 [galaxy in -n/a] 15.86^m [simbad]
• PGC 40045 [galaxy in -n/a] 15.91^m [simbad]
• PGC 40767 [galaxy in -n/a] 15.91^m [simbad]
• PGC 3090509 [galaxy in -n/a] 15.96^m [simbad]
• PGC 39227, UGC 07269 [galaxy in -n/a] 15.97^m [simbad]
• IC 3382 [galaxy in Com] 16^m [simbad]
• PGC 41428 [galaxy in -n/a] 16.02^m [simbad]
• PGC 165065 [galaxy in -n/a] 16.06^m [simbad]
• PGC 41311 [galaxy in -n/a] 16.08^m [simbad]
• PGC 165191 [galaxy in -n/a] 16.08^m [simbad]
• PGC 39641 [galaxy in -n/a] 16.14^m [simbad]
• PGC 39971 [galaxy in -n/a] 16.21^m [simbad]
• IC 0783A, PGC 40068 [galaxy in -n/a] 16.22^m [simbad]
• PGC 41515 [galaxy in -n/a] 16.23^m [simbad]
• PGC 41219 [galaxy in -n/a] 16.23^m [simbad]
• PGC 39610 [galaxy in -n/a] 16.25^m [simbad]
• PGC 41370 [galaxy in -n/a] 16.27^m [simbad]
• PGC 39674 [galaxy in -n/a] 16.29^m [simbad]
• PGC 42059 [galaxy in -n/a] 16.3^m [simbad]
• PGC 41019 [galaxy in -n/a] 16.32^m [simbad]
• PGC 40098 [galaxy in -n/a] 16.34^m [simbad]
• PGC 41937 [galaxy in -n/a] 16.35^m [simbad]
• PGC 165149 [galaxy in -n/a] 16.36^m [simbad]
• PGC 42062 [galaxy in -n/a] 16.37^m [simbad]
• PGC 165067 [galaxy in -n/a] 16.37^m [simbad]
• PGC 1460520 [galaxy in -n/a] 16.37^m [simbad]
• PGC 40146 [galaxy in -n/a] 16.38^m [simbad]
• PGC 40462 [galaxy in -n/a] 16.39^m [simbad]
• PGC 165124 [galaxy in -n/a] 16.42^m [simbad]
• PGC 40491 [galaxy in -n/a] 16.45^m [simbad]
• PGC 41211 [galaxy in -n/a] 16.46^m [simbad]
• PGC 40214 [galaxy in -n/a] 16.47^m [simbad]
• PGC 40848 [galaxy in -n/a] 16.49^m [simbad]
• PGC 40957 [galaxy in -n/a] 16.5^m [simbad]
• UGC 07588, PGC 40954 [galaxy in -n/a] 16.51^m [simbad]
• PGC 1452275 [galaxy in -n/a] 16.54^m [simbad]
• PGC 39213 [galaxy in -n/a] 16.55^m [simbad]
• PGC 41120 [galaxy in -n/a] 16.56^m [simbad]
• PGC 169494 [galaxy in -n/a] 16.56^m [simbad]
• PGC 1456471 [galaxy in -n/a] 16.57^m [simbad]
• PGC 165232 [galaxy in -n/a] 16.58^m [simbad]
• PGC 1451680 [galaxy in -n/a] 16.58^m [simbad]
• PGC 39935 [galaxy in -n/a] 16.61^m [simbad]
• PGC 165234 [galaxy in -n/a] 16.61^m [simbad]
• PGC 165147 [galaxy in -n/a] 16.62^m [simbad]
• PGC 40540 [galaxy in -n/a] 16.62^m [simbad]
• PGC 40534 [galaxy in -n/a] 16.63^m [simbad]
• PGC 39498 [galaxy in -n/a] 16.64^m [simbad]
• PGC 1468692 [galaxy in -n/a] 16.64^m [simbad]
• PGC 165230 [galaxy in -n/a] 16.66^m [simbad]
• PGC 40269 [galaxy in -n/a] 16.66^m [simbad]
• PGC 40155 [galaxy in -n/a] 16.68^m [simbad]
• PGC 41859 [galaxy in -n/a] 16.68^m [simbad]
• PGC 40588 [galaxy in -n/a] 16.69^m [simbad]
• PGC 40141 [galaxy in -n/a] 16.69^m [simbad]
• PGC 3090510 [galaxy in -n/a] 16.72^m [simbad]
• PGC 40166 [galaxy in -n/a] 16.72^m [simbad]
• PGC 3090754 [galaxy in -n/a] 16.73^m [simbad]
• PGC 40505 [galaxy in -n/a] 16.75^m [simbad]
• PGC 40186 [galaxy in -n/a] 16.76^m [simbad]
• PGC 1497043 [galaxy in -n/a] 16.77^m [simbad]
• PGC 3090631 [galaxy in -n/a] 16.77^m [simbad]
• PGC 165058 [galaxy in -n/a] 16.77^m [simbad]
• PGC 41212 [galaxy in -n/a] 16.8^m [simbad]
• PGC 1452183 [galaxy in -n/a] 16.81^m [simbad]
• PGC 1451441 [galaxy in -n/a] 16.83^m [simbad]
• PGC 1449108 [galaxy in -n/a] 16.83^m [simbad]
• PGC 42070 [galaxy in -n/a] 16.85^m [simbad]
• PGC 1443965 [galaxy in -n/a] 16.87^m [simbad]
• PGC 39869 [galaxy in -n/a] 16.87^m [simbad]
• PGC 41910 [galaxy in -n/a] 16.88^m [simbad]
• PGC 39942 [galaxy in -n/a] 16.88^m [simbad]
• PGC 40844 [galaxy in -n/a] 16.9^m [simbad]
• PGC 40058 [galaxy in -n/a] 16.91^m [simbad]
• PGC 165193 [galaxy in -n/a] 16.91^m [simbad]
• PGC 165181 [galaxy in -n/a] 16.93^m [simbad]
• PGC 87467 [galaxy in -n/a] 16.93^m [simbad]
• PGC 1453147 [galaxy in -n/a] 16.94^m [simbad]
• PGC 1496535 [galaxy in -n/a] 16.95^m [simbad]
• PGC 40798 [galaxy in -n/a] 16.95^m [simbad]
• PGC 3090632 [galaxy in -n/a] 16.97^m [simbad]
• PGC 40419 [galaxy in -n/a] 16.98^m [simbad]
• PGC 165224 [galaxy in -n/a] 16.98^m [simbad]
• PGC 165166 [galaxy in -n/a] 16.98^m [simbad]
• PGC 165183 [galaxy in -n/a] 16.99^m [simbad]
• PGC 165155 [galaxy in -n/a] 17^m [simbad]
• IC 3409 [galaxy in Com] 17^m [simbad]
• IC 3423 [? in Com] [simbad]
• IC 3422 [ in Com] [simbad]
• IC 3524 [** in Com] [simbad]
• IC 3523 [ in Com] [simbad]
• IC 3544 [** in Com] [simbad]
• IC 3419 [ in Com] [simbad]
• IC 3310 [* in Com] [simbad]
• NGC 4327 [* in Com] [wiki] [simbad]
• NGC 4405, IC 788 [ in Com] [wiki] [simbad]
• IC 3235 [ in Com] [simbad]
• IC 3058 [ in Com] [simbad]
• IC 3398 [* in Com] [simbad]
• IC 3177 [ in Com] [simbad]
• IC 3126 [ in Com] [simbad]
• IC 3420 [* in Com] [simbad]
• IC 3142 [nebula in Com] [simbad]
• IC 3575 [ in Com] [simbad]
• IC 3301 [ in Com] [simbad]
• IC 3426 [* in Com] [simbad]
• IC 3307 [* in Com] [simbad]

***

Tech info: 19×2 min, ISO 1600, Canon 1100D mod, Canon EF 200mm f/2.8 L II USM at f/2.8, HEQ5, 2017-03-31, Dângău Mare, Cluj. Because of the maximum diaphragm, I had some ugly halos to deal with, but in exchange, no spikes.

raw sample

stack

flat needed

flatted

crop, prominent objects

crop, plate solved

annotated by my dso

Final image: Galaxies in Vir/Com

*There are many pinwheels in astronomy. The Pinwheel is Messier 101, referred to as the Pinwheel Galaxy. Messier 83 is referred to as the Southern Pinwheel Galaxy. Sometimes M33 Triangulum Galaxy gets this name, and M99 might get mentioned as the Coma Pinwheel Galaxy.