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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 50697010h 21m 09s-34° 47’ 18”
StarHIP 512597.424410h 28m 14s-36° 13’ 12”
StarHIP 506318.453610h 20m 30s-35° 52’ 29”
StarHIP 507088.339210h 21m 15s-37° 07’ 57”
StarHIP 511128.325210h 26m 34s-34° 42’ 02”
StarHIP 507238.646610h 21m 23s-35° 21’ 37”
StarHIP 509488.313410h 24m 17s-35° 38’ 50”
StarHIP 504926.174610h 18m 37s-36° 48’ 16”
StarHIP 504897.57410h 18m 34s-35° 45’ 54”
StarHIP 505256.720210h 19m 10s-34° 36’ 59”
StarHIP 505108.208210h 18m 59s-36° 24’ 18”
GalaxyNGC 325812.510h 28m 54s-35° 36’ 21”
GalaxyNGC 326013.710h 29m 06s-35° 35’ 39”
GalaxyNGC 322412.310h 21m 41s-34° 41’ 44”
GalaxyNGC 324913.910h 26m 22s-34° 57’ 47”

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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