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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 82396016h 50m 10s-34° 17’ 33”
StarHIP 82739016h 54m 40s-35° 13’ 29”
StarHIP 828556.128416h 55m 57s-33° 30’ 24”
StarHIP 820338.514416h 45m 27s-34° 36’ 49”
StarHIP 830597.070216h 58m 19s-33° 36’ 32”
StarHIP 822998.714416h 48m 57s-33° 43’ 43”
StarHIP 827147.032816h 54m 26s-33° 28’ 31”
StarHIP 822017.765416h 47m 36s-33° 41’ 58”
StarHIP 825978.80716h 53m 06s-33° 22’ 57”
StarHIP 829605.316216h 57m 11s-33° 15’ 34”
StarHIP 824948.863416h 51m 34s-32° 46’ 17”
StarHIP 820467.089216h 45m 35s-33° 51’ 00”
StarHIP 828818.923816h 56m 17s-34° 06’ 02”

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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