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21P/Giacobini-Zinner live position and data

This page shows Comet 21P/Giacobini-Zinner 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 21P/Giacobini-Zinner (less than 1.5 degrees):

TypeNameMagnitudeArDec
StarHIP 57625011h 48m 56s-10° 26’ 28”
StarHIP 577588.156211h 50m 42s-09° 56’ 50”
StarHIP 578007.992611h 51m 06s-11° 12’ 28”
StarHIP 575857.527811h 48m 17s-08° 52’ 27”
StarHIP 576317.291411h 49m 03s-09° 07’ 04”
StarHIP 577637.583811h 50m 44s-09° 23’ 50”
StarHIP 574828.76911h 46m 58s-10° 56’ 56”
StarHIP 575876.196611h 48m 23s-10° 18’ 46”
StarHIP 572188.330811h 43m 57s-10° 37’ 39”
StarHIP 575997.774411h 48m 30s-09° 22’ 33”
StarHIP 572298.84311h 44m 03s-10° 46’ 21”
StarHIP 577907.618811h 51m 02s-09° 16’ 23”
StarHIP 578168.320611h 51m 20s-09° 58’ 36”
StarHIP 574728.961411h 46m 52s-10° 16’ 02”
StarHIP 572136.770411h 43m 55s-09° 07’ 56”
StarHIP 577128.787411h 50m 07s-11° 02’ 43”
GalaxyNGC 389212.411h 48m 01s-10° 57’ 42”
GalaxyPGC 3664313.511h 45m 26s-10° 06’ 10”
GalaxyNGC 386513.011h 44m 51s-09° 13’ 59”
GalaxyNGC 386614.011h 45m 16s-09° 20’ 20”
GalaxyNGC 390513.411h 49m 04s-09° 43’ 45”

Additional resources

Additional Resources about Comet 21P/Giacobini-Zinner

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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