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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 113033022h 53m 29s+27° 45’ 19”
StarHIP 113069022h 53m 59s+26° 57’ 09”
StarHIP 1134868.156422h 58m 58s+27° 44’ 45”
StarHIP 1130637.265222h 53m 48s+28° 37’ 33”
StarHIP 1128548.509222h 51m 15s+29° 14’ 02”
StarHIP 1130057.28722h 53m 09s+26° 58’ 38”
StarHIP 1134678.892622h 58m 44s+28° 58’ 50”
StarHIP 1129798.42922h 52m 48s+29° 26’ 27”
StarHIP 1127337.55122h 49m 47s+28° 56’ 39”
StarHIP 1131328.699222h 54m 35s+29° 21’ 30”
StarHIP 1127288.855822h 49m 44s+27° 35’ 16”
StarHIP 1134817.9322h 58m 54s+27° 29’ 58”
StarHIP 1130927.642822h 54m 11s+28° 00’ 59”

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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