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C/2017 S6 (Lemmon) live position and data

This page shows Comet C/2017 S7 (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/2017 S7 (Lemmon) (less than 1.5 degrees):

TypeNameMagnitudeArDec
StarHIP 21086004h 31m 09s-13° 30’ 50”
StarHIP 211106.24204h 31m 25s-13° 38’ 38”
StarHIP 208546.620804h 28m 07s-15° 10’ 49”
StarHIP 209225.611404h 29m 06s-13° 02’ 54”
StarHIP 209976.117604h 30m 09s-13° 35’ 32”
StarHIP 209397.75904h 29m 22s-14° 03’ 12”
StarHIP 206978.33104h 26m 01s-13° 16’ 49”
StarHIP 207497.939404h 26m 46s-14° 37’ 16”
StarHIP 212708.611604h 33m 48s-12° 55’ 43”
StarHIP 211437.1204h 31m 56s-12° 37’ 57”
StarHIP 208378.43804h 27m 56s-13° 27’ 52”
StarHIP 205217.914204h 23m 51s-14° 00’ 54”
StarHIP 209038.096204h 28m 50s-14° 58’ 45”
StarHIP 209158.607404h 28m 58s-13° 39’ 40”
GalaxyPGC 1552412.604h 33m 37s-13° 15’ 47”

Additional resources

Additional Resources about Comet C/2017 S7 (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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