C/2021 P4 (ATLAS) live position and data

This page shows Comet C/2021 P4 (ATLAS) 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 P4 (ATLAS) (less than 1.5 degrees):

StarHIP 523017.479810h 41m 10s-00° 16’ 34”
StarHIP 522058.32310h 39m 58s+01° 17’ 16”
StarHIP 520588.10110h 38m 17s+01° 14’ 38”
StarHIP 518958.633610h 36m 09s+00° 41’ 09”
StarHIP 523777.427810h 42m 21s+00° 51’ 43”
StarHIP 523277.998210h 41m 35s-00° 16’ 20”
GalaxyNGC 334013.710h 42m 17s-00° 22’ 41”
GalaxyNGC 332513.810h 39m 20s-00° 11’ 53”

Additional resources

Additional Resources about Comet C/2021 P4 (ATLAS)

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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