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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 345168.530807h 09m 07s-07° 46’ 20”
StarHIP 348627.445407h 12m 49s-07° 08’ 57”
StarHIP 341568.587807h 04m 58s-05° 47’ 57”
StarHIP 345907.837207h 09m 53s-05° 44’ 08”
StarHIP 343267.672407h 06m 56s-07° 33’ 26”
StarHIP 346497.3607h 10m 33s-07° 52’ 15”
StarHIP 345088.155207h 09m 01s-07° 56’ 20”
StarHIP 343307.287207h 06m 59s-05° 28’ 17”
StarHIP 349088.443407h 13m 21s-06° 26’ 04”
StarHIP 340278.002607h 03m 35s-06° 55’ 07”
StarHIP 347728.53907h 11m 54s-06° 33’ 43”
StarHIP 345268.629607h 09m 14s-07° 04’ 13”
StarHIP 339558.171607h 02m 43s-06° 47’ 54”
StarHIP 346068.69907h 10m 06s-07° 13’ 26”
StarHIP 345596.93507h 09m 32s-06° 02’ 38”
StarHIP 338946.669607h 02m 07s-06° 01’ 20”
GalaxyPGC 2027413.207h 09m 33s-05° 25’ 54”

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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