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C/2021 A2 live position and data

This page shows Comet C/2021 A2 location and other relevant astronomical data in real time. The celestial coordinates, magnitude, distances and speed are updated in real time and are computed using high quality data sets provided by the JPL Horizons ephemeris service (see acknowledgements for details). The sky map shown below represents a rectangular portion of the sky 60x40 arcminutes wide. By comparison the diameter of the full Moon is about 30 arcmins, so the full horizontal extent of the map is approximately 2 full Moons wide. Depending on the device you are using, the map can be dragged horizondally or vertically using the mouse or touchscreen. The deep sky image in the background is provided by the Digitized Sky Survey (acknowledgements).

Current close conjunctions

List of bright objects (stars brighter than magnitude 9.0 and galaxies brighter than magmitude 14.0) close to Comet C/2021 A2 (less than 1.5 degrees):

TypeNameMagnitudeArDec
StarHIP 42615008h 41m 06s-34° 22’ 32”
StarHIP 433318.72108h 49m 40s-34° 50’ 59”
StarHIP 427568.181808h 42m 47s-34° 44’ 02”
StarHIP 430647.068608h 46m 21s-33° 54’ 07”
StarHIP 431908.44508h 47m 58s-35° 43’ 38”
StarHIP 431146.33708h 46m 49s-34° 37’ 22”
StarHIP 428283.69608h 43m 35s-33° 11’ 11”
StarHIP 425153.877408h 40m 06s-35° 18’ 29”
StarHIP 431566.512208h 47m 23s-34° 36’ 01”
StarHIP 428028.58408h 43m 14s-34° 04’ 19”
StarHIP 434597.8408h 51m 05s-34° 25’ 12”
StarHIP 425107.553208h 40m 02s-34° 01’ 11”
StarHIP 432948.845808h 49m 10s-34° 18’ 13”
StarHIP 431187.612808h 46m 51s-34° 04’ 01”
StarHIP 430978.963208h 46m 38s-35° 35’ 18”
StarHIP 433778.2608h 50m 09s-34° 13’ 46”
StarHIP 428598.49408h 44m 01s-33° 27’ 10”
StarHIP 426337.835808h 41m 18s-33° 14’ 18”
StarHIP 430957.850808h 46m 36s-33° 14’ 43”
StarHIP 431866.693408h 47m 51s-33° 23’ 54”
StarHIP 432938.65708h 49m 09s-35° 23’ 33”
StarHIP 431748.32108h 47m 38s-33° 19’ 01”
StarHIP 424956.934808h 39m 50s-34° 00’ 35”
StarHIP 428438.918608h 43m 47s-33° 27’ 14”
GalaxyNGC 266311.908h 45m 08s-33° 47’ 39”
GalaxyESO 371-2013.508h 50m 55s-34° 32’ 11”
GalaxyESO 371-1612.808h 47m 05s-33° 45’ 46”

Additional resources

Additional Resources about Comet C/2021 A2

Astronomy databases

This online sky chart is created using the following astronomy databases and services:

  1. The Digitized Sky Survey, a photographic survey of the whole sky created using images from different telescopes, including the Oschin Schmidt Telescope on Palomar Mountain
  2. The Hipparcos Star Catalogue, containing more than 100.000 bright stars
  3. The PGC 2003 Catalogue, containing information about 1 million galaxies
  4. The GSC 2.3 Catalogue, containing information about more than 2 billion stars and galaxies
Please see the acknowledgements section.

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