C/2021 A1 (Leonard) live position and data

This page shows Comet Leonard (C/2021 A1) 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 Leonard (C/2021 A1) (less than 1.5 degrees):

Type	Name	Magnitude	Ar	Dec
Star	HIP 82738	7.6474	16h 54m 40s	-32° 11’ 24”
Star	HIP 82855	6.1284	16h 55m 57s	-33° 30’ 24”
Star	HIP 82423	7.7914	16h 50m 39s	-31° 38’ 11”
Star	HIP 83059	7.0702	16h 58m 19s	-33° 36’ 32”
Star	HIP 82131	8.0058	16h 46m 41s	-32° 56’ 51”
Star	HIP 82299	8.7144	16h 48m 57s	-33° 43’ 43”
Star	HIP 82714	7.0328	16h 54m 26s	-33° 28’ 31”
Star	HIP 82596	7.5692	16h 53m 06s	-31° 52’ 48”
Star	HIP 82201	7.7654	16h 47m 36s	-33° 41’ 58”
Star	HIP 82597	8.807	16h 53m 06s	-33° 22’ 57”
Star	HIP 82960	5.3162	16h 57m 11s	-33° 15’ 34”
Star	HIP 82494	8.8634	16h 51m 34s	-32° 46’ 17”
Star	HIP 82347	6.6952	16h 49m 33s	-31° 39’ 04”
Star	HIP 82546	8.6306	16h 52m 20s	-31° 49’ 13”
Star	HIP 83035	8.6376	16h 58m 06s	-32° 04’ 03”
Star	HIP 82881	8.9238	16h 56m 17s	-34° 06’ 02”

Additional resources

Additional Resources about Comet Leonard (C/2021 A1)

• 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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