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 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 Y1 (ATLAS) (less than 1.5 degrees):

Type	Name	Magnitude	Ar	Dec
Star	HIP 23117	6.7152	04h 58m 28s	+37° 19’ 44”
Star	HIP 22453	4.7268	04h 49m 54s	+37° 29’ 17”
Star	HIP 23013	8.6266	04h 56m 58s	+37° 51’ 57”
Star	HIP 22744	6.5804	04h 53m 34s	+36° 48’ 21”
Star	HIP 23282	7.2722	05h 00m 33s	+36° 37’ 38”
Star	HIP 23536	7.2984	05h 03m 38s	+37° 16’ 06”
Star	HIP 22529	7.2382	04h 50m 53s	+37° 45’ 37”
Star	HIP 22630	8.599	04h 52m 09s	+36° 13’ 13”
Star	HIP 22776	7.697	04h 53m 56s	+36° 45’ 26”
Star	HIP 23387	8.1694	05h 01m 38s	+37° 24’ 34”
Star	HIP 22955	6.0634	04h 56m 20s	+36° 10’ 06”
Star	HIP 22704	8.0686	04h 52m 56s	+35° 48’ 10”
Star	HIP 22647	6.6978	04h 52m 20s	+36° 38’ 31”
Star	HIP 23179	4.9328	04h 59m 15s	+37° 53’ 25”
Star	HIP 22678	4.6394	04h 52m 37s	+36° 42’ 11”
Star	HIP 22421	7.6872	04h 49m 29s	+37° 20’ 06”

Additional resources

Additional Resources about Comet C/2021 Y1 (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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