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 106541	6.7734	21h 34m 40s	-36° 38’ 49”
Star	HIP 107079	6.7782	21h 41m 18s	-35° 35’ 06”
Star	HIP 106452	7.9776	21h 33m 38s	-34° 56’ 45”
Star	HIP 107067	8.5226	21h 41m 03s	-35° 38’ 42”
Star	HIP 106813	8.2958	21h 37m 59s	-34° 40’ 44”
Star	HIP 106580	8.8896	21h 35m 10s	-36° 39’ 31”
Star	HIP 106928	8.5648	21h 39m 19s	-35° 00’ 15”
Star	HIP 106714	7.3226	21h 36m 58s	-35° 53’ 02”
Star	HIP 106671	7.7682	21h 36m 20s	-35° 10’ 45”
Star	HIP 106224	7.618	21h 30m 57s	-36° 32’ 49”
Star	HIP 107109	8.8044	21h 41m 45s	-35° 34’ 29”
Star	HIP 106931	8.0096	21h 39m 20s	-37° 08’ 27”
Star	HIP 106822	7.9232	21h 38m 04s	-37° 09’ 50”
Star	HIP 106976	8.3244	21h 39m 56s	-35° 50’ 33”
Star	HIP 106188	8.1896	21h 30m 30s	-35° 59’ 51”
Star	HIP 106287	8.1108	21h 31m 39s	-35° 04’ 38”
Star	HIP 106705	8.5678	21h 36m 51s	-35° 53’ 09”
Galaxy	ESO 403-12	13.8	21h 39m 52s	-36° 02’ 11”
Galaxy	NGC 7091	13.4	21h 34m 07s	-36° 39’ 07”

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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