Object: P/2016 J3 (STEREO) (open sky map)

RA 02h 06m 36s Dec +38° 39’ 18” Appar J2000

Mag: 23.33 (Estimated: JPL) Const: Andromeda

Sun Dist: 210684936.31183 km [ km/s]
Earth Dist: 202510583.59371 km [ km/s]
Perihelion: 28 Sep 2025 08:21 UTC []

RA:
Dec:

P/2016 J3 (STEREO) Live Position Tracker

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 in the background 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):

Type	Name	Magnitude	Ar	Dec
Star	HIP 10223	8.892	02h 11m 27s	+39° 27’ 51”
Star	HIP 9781	8.7302	02h 05m 46s	+38° 00’ 22”
Star	HIP 9700	8.2216	02h 04m 45s	+39° 26’ 06”
Star	HIP 10180	6.7738	02h 10m 53s	+39° 02’ 36”
Star	HIP 9977	4.7748	02h 08m 29s	+37° 51’ 33”
Star	HIP 9541	8.6376	02h 02m 38s	+38° 32’ 38”
Star	HIP 9667	8.7638	02h 04m 19s	+39° 24’ 13”
Star	HIP 10176	6.0826	02h 10m 52s	+39° 02’ 22”
Star	HIP 9370	8.854	02h 00m 24s	+39° 32’ 13”
Star	HIP 9861	8.6274	02h 06m 51s	+37° 38’ 19”
Star	HIP 9779	7.5606	02h 05m 46s	+39° 45’ 35”
Star	HIP 10006	7.6256	02h 08m 52s	+39° 20’ 55”
Star	HIP 9973	8.3866	02h 08m 25s	+39° 23’ 47”
Star	HIP 9822	7.911	02h 06m 24s	+38° 53’ 59”
Star	HIP 9526	8.538	02h 02m 30s	+37° 29’ 57”
Star	HIP 9245	8.9322	01h 58m 52s	+37° 48’ 57”
Star	HIP 9413	8.1048	02h 00m 56s	+38° 41’ 02”
Star	HIP 9401	7.8718	02h 00m 47s	+39° 37’ 31”
Star	HIP 10023	8.8824	02h 09m 02s	+39° 35’ 32”
Star	HIP 9363	7.4792	02h 00m 17s	+38° 35’ 51”
Galaxy	NGC 828	13.1	02h 10m 09s	+39° 11’ 29”
Galaxy	NGC 797	13.6	02h 03m 27s	+38° 07’ 02”
Galaxy	NGC 818	13.2	02h 08m 44s	+38° 46’ 36”
Galaxy	NGC 834	13.8	02h 11m 01s	+37° 39’ 59”
Galaxy	IC 179	13.4	02h 00m 11s	+38° 01’ 14”
Galaxy	NGC 801	13.9	02h 03m 44s	+38° 15’ 37”
Galaxy	UGC 1493	13.9	02h 00m 55s	+38° 12’ 42”

Additional resources

Astronomy databases

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

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
The Hipparcos Star Catalogue, containing more than 100.000 bright stars
The PGC 2003 Catalogue, containing information about 1 million galaxies
The GSC 2.3 Catalogue, containing information about more than 2 billion stars and galaxies

Please see the acknowledgements section.

RA: ()
Dec: ()

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Name:	Antequera MA (ES)
Latitude:	37° 1' 9.8" N
Longitude:	4° 33' 40.4" W
Timezone:	Europe/Madrid

P/2016 J3 (STEREO) Live Position Tracker

Current close conjunctions

Additional resources

Astronomy databases

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