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 56410	6.2786	11h 33m 56s	+36° 48’ 56”
Star	HIP 56523	8.964	11h 35m 21s	+34° 30’ 34”
Star	HIP 56927	8.045	11h 40m 14s	+36° 28’ 31”
Star	HIP 56516	8.6372	11h 35m 12s	+35° 24’ 20”
Star	HIP 56671	8.453	11h 37m 13s	+36° 12’ 57”
Star	HIP 57362	6.8684	11h 45m 35s	+35° 53’ 39”
Star	HIP 56382	8.0598	11h 33m 29s	+36° 45’ 55”
Star	HIP 56274	6.5002	11h 32m 12s	+36° 14’ 50”
Galaxy	NGC 3755	13.6	11h 36m 33s	+36° 24’ 38”
Galaxy	NGC 3813	12.3	11h 41m 18s	+36° 32’ 48”

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

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.

Close