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 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 P4 (ATLAS) (less than 1.5 degrees):

Type	Name	Magnitude	Ar	Dec
Star	HIP 23944	7.7902	05h 08m 45s	+57° 24’ 06”
Star	HIP 24067	8.093	05h 10m 17s	+57° 04’ 20”
Star	HIP 23813	8.164	05h 07m 04s	+59° 19’ 58”
Star	HIP 24801	8.9308	05h 19m 01s	+58° 06’ 35”
Star	HIP 23403	7.3978	05h 01m 46s	+57° 08’ 00”
Star	HIP 23471	8.9126	05h 02m 44s	+57° 45’ 11”
Star	HIP 23605	7.8866	05h 04m 32s	+58° 51’ 39”
Star	HIP 23004	7.8868	04h 56m 52s	+58° 05’ 57”
Star	HIP 24328	7.896	05h 13m 14s	+58° 39’ 47”
Star	HIP 23836	7.5002	05h 07m 28s	+58° 35’ 34”
Star	HIP 23734	5.2316	05h 06m 08s	+58° 58’ 20”
Star	HIP 23743	5.9742	05h 06m 12s	+59° 01’ 17”
Star	HIP 23257	8.906	05h 00m 16s	+57° 54’ 48”
Star	HIP 23329	7.2758	05h 01m 06s	+58° 39’ 57”

Additional resources

Additional Resources about Comet C/2021 P4 (ATLAS)

• 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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