C/2021 P4 (ATLAS) live position and data

This page shows Comet C/2021 P4 (ATLAS) 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 C/2021 P4 (ATLAS) (less than 1.5 degrees):

Type	Name	Magnitude	Ar	Dec
Star	HIP 104183	7.4172	21h 06m 29s	-68° 38’ 45”
Star	HIP 102725	6.976	20h 48m 56s	-68° 47’ 27”
Star	HIP 104000	8.5598	21h 04m 14s	-68° 12’ 50”
Star	HIP 102773	5.2988	20h 49m 18s	-68° 46’ 35”
Star	HIP 103468	7.0176	20h 57m 46s	-68° 25’ 28”
Star	HIP 102828	8.8966	20h 49m 55s	-67° 41’ 50”
Star	HIP 103412	7.6058	20h 57m 09s	-67° 41’ 56”
Star	HIP 104299	8.4618	21h 07m 45s	-67° 55’ 12”
Star	HIP 103917	8.2892	21h 03m 18s	-69° 10’ 15”
Star	HIP 103503	6.8408	20h 58m 11s	-69° 08’ 46”
Star	HIP 102133	8.3256	20h 41m 46s	-68° 08’ 06”
Star	HIP 103752	6.3466	21h 01m 28s	-68° 12’ 34”
Star	HIP 103664	8.9774	21h 00m 13s	-69° 43’ 39”
Star	HIP 103031	8.4438	20h 52m 26s	-67° 35’ 57”
Star	HIP 104352	8.2644	21h 08m 25s	-69° 14’ 01”
Star	HIP 103654	6.8022	21h 00m 05s	-69° 34’ 43”
Star	HIP 102326	8.0492	20h 43m 55s	-68° 54’ 52”
Star	HIP 103953	7.5974	21h 03m 46s	-68° 04’ 18”
Galaxy	NGC 6943	12.0	20h 44m 32s	-68° 44’ 49”
Galaxy	IC 5052	11.3	20h 52m 06s	-69° 12’ 14”
Galaxy	ESO 74-9A	13.3	20h 48m 51s	-69° 05’ 41”

Additional resources

• 15 Days Ephemerides
• Interactive Sky Map (Planetarium)
• Rise & Set Times
• Distance from Earth
• Light Curve
• Orbital Elements

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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