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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 170088.460603h 38m 47s+59° 35’ 02”
StarHIP 178878.899403h 49m 34s+58° 46’ 05”
StarHIP 170838.17103h 39m 37s+59° 22’ 12”
StarHIP 172868.770203h 42m 02s+58° 44’ 54”
StarHIP 167498.040203h 35m 28s+59° 31’ 42”
StarHIP 175407.968403h 45m 21s+60° 21’ 03”
StarHIP 170756.754803h 39m 32s+59° 26’ 43”
StarHIP 180886.77303h 52m 00s+60° 20’ 11”
StarHIP 175687.737203h 45m 44s+58° 51’ 21”
StarHIP 176618.60203h 46m 57s+58° 57’ 38”
StarHIP 184136.483203h 56m 11s+59° 38’ 29”
StarHIP 172116.822403h 41m 11s+58° 50’ 42”
StarHIP 173425.572803h 42m 42s+59° 58’ 09”
StarHIP 179868.345803h 50m 39s+60° 07’ 22”
StarHIP 182428.464203h 54m 06s+60° 21’ 00”
StarHIP 176798.80803h 47m 14s+60° 52’ 08”

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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