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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 437998.638408h 55m 12s-34° 28’ 11”
StarHIP 437817.042408h 55m 01s-34° 08’ 34”
StarHIP 437617.29708h 54m 52s-36° 03’ 24”
StarHIP 438018.878408h 55m 15s-36° 26’ 12”
StarHIP 441328.787608h 59m 17s-35° 18’ 36”
StarHIP 433966.856208h 50m 23s-35° 55’ 49”
StarHIP 434597.8408h 51m 05s-34° 25’ 12”
StarHIP 441708.92108h 59m 46s-34° 05’ 00”
StarHIP 436988.593608h 54m 00s-35° 29’ 23”
StarHIP 437547.984408h 54m 45s-35° 30’ 09”
StarHIP 443607.643809h 02m 01s-35° 41’ 17”
StarHIP 438427.655608h 55m 47s-34° 16’ 08”
StarHIP 440498.655408h 58m 14s-34° 24’ 31”
StarHIP 443107.916209h 01m 25s-35° 25’ 39”
StarHIP 437047.362808h 54m 01s-35° 39’ 02”
StarHIP 435906.363808h 52m 38s-36° 32’ 43”
StarHIP 436218.704808h 53m 04s-35° 14’ 28”
StarHIP 442618.256809h 00m 49s-34° 34’ 01”
GalaxyESO 371-2013.508h 50m 55s-34° 32’ 11”

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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