P/2016 J3 (STEREO) live position and data

This page shows Comet P/2016 J3 (STEREO = 2021 A3) 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 P/2016 J3 (STEREO = 2021 A3) (less than 1.5 degrees):

StarHIP 781438.69815h 57m 22s-41° 47’ 51”
StarHIP 774328.95915h 48m 24s-42° 37’ 04”
StarHIP 780277.321415h 55m 56s-40° 47’ 11”
StarHIP 780427.036615h 56m 05s-40° 42’ 16”
StarHIP 778887.582415h 54m 24s-41° 10’ 22”
StarHIP 780928.26615h 56m 41s-42° 19’ 23”
StarHIP 783234.88315h 59m 30s-41° 44’ 39”
StarHIP 779728.610215h 55m 24s-41° 55’ 30”
StarHIP 776738.247415h 51m 27s-42° 18’ 02”
StarHIP 782388.006815h 58m 31s-42° 44’ 33”
StarHIP 775718.472815h 50m 12s-41° 54’ 18”
StarHIP 774817.425415h 49m 14s-41° 47’ 28”
StarHIP 777778.739215h 52m 53s-43° 15’ 55”
StarHIP 773257.293215h 47m 12s-42° 12’ 15”
StarHIP 782157.91315h 58m 19s-41° 39’ 34”
StarHIP 779586.630815h 55m 15s-42° 36’ 18”
StarHIP 777278.105615h 52m 08s-42° 35’ 28”
StarHIP 781707.974215h 57m 40s-42° 37’ 25”
StarHIP 779517.497815h 55m 07s-40° 36’ 45”

Additional resources

Additional Resources about Comet P/2016 J3 (STEREO = 2021 A3)

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.

RA:  ()
Dec:  ()