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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 51595010h 32m 21s-41° 10’ 35”
StarHIP 51719010h 34m 02s-44° 00’ 31”
StarHIP 513796.672410h 29m 38s-43° 03’ 02”
StarHIP 510776.020610h 26m 09s-42° 44’ 18”
StarHIP 514127.548810h 30m 03s-43° 07’ 47”
StarHIP 515127.34910h 31m 13s-42° 13’ 45”
StarHIP 513878.462210h 29m 42s-43° 08’ 08”
StarHIP 522188.84910h 40m 08s-43° 04’ 50”
StarHIP 511737.090210h 27m 09s-42° 03’ 10”
StarHIP 515048.004810h 31m 06s-42° 13’ 15”
StarHIP 519728.844810h 37m 09s-42° 41’ 08”
StarHIP 519636.892610h 36m 58s-41° 20’ 28”
StarHIP 516217.691210h 32m 46s-43° 37’ 39”
StarHIP 518508.282210h 35m 35s-43° 47’ 13”
StarHIP 521126.058610h 38m 50s-42° 45’ 12”
StarHIP 518278.56910h 35m 17s-43° 03’ 08”
StarHIP 510828.164210h 26m 12s-42° 52’ 51”
StarHIP 518166.019210h 35m 10s-43° 39’ 52”
StarHIP 519987.139810h 37m 23s-43° 31’ 24”
StarHIP 517657.42210h 34m 40s-41° 44’ 58”
StarHIP 517668.355210h 34m 40s-42° 05’ 41”
StarHIP 512447.920410h 27m 59s-42° 00’ 35”
GalaxyNGC 336612.210h 35m 08s-43° 41’ 31”
GalaxyNGC 331812.310h 37m 15s-41° 37’ 41”
GalaxyNGC 3318B13.910h 37m 34s-41° 27’ 54”

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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