RA: 
Dec: 

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):

TypeNameMagnitudeArDec
StarHIP 1097048.001622h 13m 17s-42° 54’ 14”
StarHIP 1088548.298822h 03m 07s-43° 13’ 56”
StarHIP 1089138.964422h 03m 43s-44° 03’ 00”
StarHIP 1091086.835822h 06m 04s-43° 57’ 58”
StarHIP 1095948.339622h 12m 02s-43° 08’ 04”
StarHIP 1086397.20522h 00m 32s-42° 27’ 06”
StarHIP 1085898.079221h 59m 50s-43° 28’ 45”
StarHIP 1090227.845222h 05m 11s-41° 33’ 46”
StarHIP 1091888.515222h 07m 07s-42° 30’ 05”
StarHIP 1093006.894422h 08m 39s-43° 02’ 28”
StarHIP 1096488.25522h 12m 44s-42° 32’ 02”
StarHIP 1084368.720821h 57m 58s-42° 50’ 33”
StarHIP 1085567.584221h 59m 24s-42° 48’ 35”
StarHIP 1089468.74822h 04m 19s-42° 43’ 28”
StarHIP 1091388.271822h 06m 24s-42° 58’ 25”
StarHIP 1095506.51322h 11m 27s-43° 50’ 33”
StarHIP 1088008.249422h 02m 27s-42° 05’ 02”
GalaxyNGC 716612.822h 00m 32s-43° 23’ 21”
GalaxyNGC 716213.321h 59m 38s-43° 18’ 17”
GalaxyESO 289-413.922h 13m 51s-42° 35’ 24”
GalaxyNGC 7162A13.322h 00m 35s-43° 08’ 27”

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:  ()