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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):

TypeNameMagnitudeArDec
StarHIP 59205012h 08m 30s+63° 02’ 24”
StarHIP 589896.014412h 05m 39s+62° 55’ 59”
StarHIP 582596.13211h 56m 53s+61° 32’ 57”
StarHIP 584587.56411h 59m 15s+61° 20’ 03”
StarHIP 583896.636811h 58m 20s+61° 27’ 52”
StarHIP 588287.665812h 03m 58s+61° 24’ 12”
StarHIP 601117.84412h 19m 40s+62° 21’ 32”
StarHIP 582968.222811h 57m 17s+62° 13’ 51”
GalaxyNGC 403611.512h 01m 27s+61° 53’ 40”
GalaxyNGC 404111.912h 02m 11s+62° 08’ 21”

Additional resources

Additional Resources about Comet Leonard (C/2021 A1)

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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