C/2021 Y1 (ATLAS) live position and data

This page shows Comet C/2021 Y1 (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 Y1 (ATLAS) (less than 1.5 degrees):

Type	Name	Magnitude	Ar	Dec
Star	HIP 28401	0	05h 59m 54s	-29° 57’ 15”
Star	HIP 28699	0	06h 03m 38s	-31° 35’ 25”
Star	HIP 27863	8.6942	05h 53m 42s	-31° 41’ 09”
Star	HIP 28427	8.189	06h 00m 11s	-30° 51’ 51”
Star	HIP 28463	8.5144	06h 00m 35s	-30° 05’ 02”
Star	HIP 28967	7.313	06h 06m 45s	-31° 25’ 00”
Star	HIP 28867	8.6356	06h 05m 41s	-31° 23’ 28”
Star	HIP 28138	6.3214	05h 56m 49s	-31° 58’ 34”
Star	HIP 28098	5.4844	05h 56m 20s	-31° 22’ 56”
Star	HIP 27976	7.8146	05h 54m 59s	-30° 18’ 20”
Star	HIP 28235	7.2786	05h 57m 56s	-31° 55’ 16”
Star	HIP 28756	5.6478	06h 04m 20s	-32° 10’ 21”
Star	HIP 28335	7.144	05h 59m 16s	-32° 12’ 34”
Star	HIP 28611	8.3512	06h 02m 19s	-30° 00’ 52”
Star	HIP 28516	8.4058	06h 01m 09s	-31° 43’ 35”
Star	HIP 28635	7.8686	06h 02m 47s	-29° 59’ 49”
Star	HIP 28923	8.8526	06h 06m 18s	-31° 40’ 14”
Star	HIP 28442	8.4774	06h 00m 19s	-31° 01’ 52”
Star	HIP 28060	6.7408	05h 55m 58s	-31° 31’ 55”
Star	HIP 28679	8.7224	06h 03m 18s	-32° 04’ 46”

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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