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C/2018 R3 (Lemmon) live position and data

This page shows Comet C/2018 R3 (Lemmon) 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/2018 R3 (Lemmon) (less than 1.5 degrees):

TypeNameMagnitudeArDec
StarHIP 1049873.893821h 15m 49s+05° 14’ 53”
StarHIP 1055006.587821h 22m 01s+04° 20’ 44”
StarHIP 1050117.382821h 16m 09s+04° 24’ 19”
StarHIP 1050537.873621h 16m 46s+05° 15’ 07”
StarHIP 1046038.029421h 11m 22s+04° 15’ 02”
StarHIP 1050777.682221h 17m 12s+03° 54’ 43”
StarHIP 1055218.159621h 22m 18s+05° 01’ 24”
StarHIP 1049968.83621h 15m 55s+03° 41’ 47”
StarHIP 1055127.647621h 22m 12s+04° 29’ 18”
StarHIP 1048607.346221h 14m 30s+04° 41’ 23”

Additional resources

Additional Resources about Comet C/2018 R3 (Lemmon)

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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