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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 214286.349804h 36m 01s-03° 36’ 41”
StarHIP 214398.686604h 36m 15s-03° 32’ 08”
StarHIP 214443.937804h 36m 19s-03° 21’ 08”
StarHIP 216208.280604h 38m 30s-04° 10’ 09”
StarHIP 216697.77604h 39m 05s-04° 48’ 24”
StarHIP 219278.252204h 42m 53s-04° 07’ 11”
StarHIP 220257.79304h 44m 06s-03° 09’ 59”
StarHIP 221094.01704h 45m 30s-03° 15’ 16”
StarHIP 221568.240404h 46m 01s-04° 05’ 05”
GalaxyNGC 162513.104h 37m 06s-03° 18’ 15”
GalaxyNGC 162713.704h 37m 37s-04° 53’ 21”
GalaxyNGC 163711.504h 41m 28s-02° 51’ 29”
GalaxyNGC 164313.604h 43m 43s-05° 19’ 09”
GalaxyNGC 164513.004h 44m 06s-05° 27’ 59”
GalaxyPGC 1597113.304h 46m 23s-03° 51’ 38”
GalaxyNGC 165913.204h 46m 30s-04° 47’ 21”

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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