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C/2017 M4 (ATLAS) live position and data

This page shows Comet C/2017 M4 (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/2017 M4 (ATLAS) (less than 1.5 degrees):

TypeNameMagnitudeArDec
StarHIP 953777.301219h 24m 09s+39° 12’ 42”
StarHIP 954238.299419h 24m 40s+38° 45’ 54”
StarHIP 955498.171819h 26m 05s+38° 48’ 49”
StarHIP 956308.339419h 27m 04s+37° 34’ 13”
StarHIP 956736.305219h 27m 36s+37° 56’ 28”
StarHIP 957646.8219h 28m 38s+39° 56’ 27”
StarHIP 957928.387219h 29m 00s+39° 56’ 10”
StarHIP 960107.664819h 31m 16s+38° 24’ 02”
StarHIP 960518.223619h 31m 45s+38° 01’ 11”
StarHIP 96074019h 32m 01s+38° 48’ 08”
StarHIP 961068.530819h 32m 23s+39° 18’ 33”
StarHIP 961318.723819h 32m 47s+37° 29’ 02”
StarHIP 961457.796219h 32m 55s+39° 39’ 45”
StarHIP 961956.606619h 33m 36s+38° 45’ 42”
StarHIP 962017.868619h 33m 43s+39° 43’ 40”
StarHIP 962798.818219h 34m 37s+39° 13’ 56”
StarHIP 962838.75919h 34m 39s+39° 16’ 08”
StarHIP 964198.17719h 36m 10s+39° 20’ 12”
StarHIP 964916.51719h 36m 56s+38° 23’ 01”
StarHIP 965176.91619h 37m 17s+38° 35’ 39”
StarHIP 965858.565619h 38m 04s+38° 46’ 30”

Additional resources

Additional Resources about Comet C/2017 M4 (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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Dec:  ()
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