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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 51280010h 28m 27s+05° 48’ 56”
StarHIP 514937.735610h 31m 00s+05° 20’ 28”
StarHIP 511228.306810h 26m 39s+06° 03’ 07”
StarHIP 512518.049610h 28m 06s+06° 16’ 10”
StarHIP 508706.493610h 23m 14s+05° 41’ 39”
StarHIP 510177.819610h 25m 21s+05° 10’ 37”
StarHIP 510327.9610h 25m 33s+04° 34’ 18”
StarHIP 514588.052410h 30m 36s+06° 37’ 32”
StarHIP 512548.437410h 28m 10s+06° 44’ 03”
StarHIP 515558.06910h 31m 50s+04° 56’ 08”
StarHIP 515926.984210h 32m 18s+04° 38’ 42”
StarHIP 510238.413410h 25m 24s+05° 51’ 56”

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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