C/2021 A4 (NEOWISE) live position and data

This page shows Comet C/2021 A4 (NEOWISE) 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 A4 (NEOWISE) (less than 1.5 degrees):

StarHIP 1122057.49222h 43m 30s-40° 07’ 43”
StarHIP 1115946.26322h 36m 29s-40° 34’ 57”
StarHIP 1118196.842222h 38m 56s-39° 09’ 17”
StarHIP 1120138.78822h 41m 20s-39° 20’ 54”
StarHIP 1120238.72522h 41m 25s-41° 15’ 25”
StarHIP 1117186.50222h 37m 47s-39° 51’ 25”
StarHIP 1115618.78322h 36m 05s-41° 10’ 29”
StarHIP 1116435.867422h 36m 58s-40° 35’ 27”
StarHIP 1120528.896822h 41m 45s-39° 27’ 41”
StarHIP 1115198.502822h 35m 39s-39° 31’ 48”
StarHIP 1121857.635422h 43m 16s-40° 00’ 32”
StarHIP 1123016.95522h 44m 49s-40° 46’ 04”
StarHIP 1115568.579222h 36m 00s-40° 18’ 48”
StarHIP 1122668.43422h 44m 21s-39° 44’ 19”
StarHIP 1122034.735822h 43m 29s-41° 24’ 50”
StarHIP 1124987.771222h 47m 16s-39° 27’ 22”
StarHIP 1121868.141422h 43m 17s-41° 32’ 36”
StarHIP 1120908.693622h 42m 13s-39° 05’ 02”
GalaxyESO 345-4613.222h 43m 15s-39° 52’ 02”
GalaxyNGC 736813.222h 45m 31s-39° 20’ 35”

Additional resources

Additional Resources about Comet C/2021 A4 (NEOWISE)

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.

RA:  ()
Dec:  ()