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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 35015007h 14m 35s-17° 23’ 19”
StarHIP 35088007h 15m 22s-17° 29’ 08”
StarHIP 35305007h 17m 35s-15° 38’ 35”
StarHIP 35366007h 18m 19s-15° 34’ 59”
StarHIP 354875.683407h 19m 28s-16° 23’ 41”
StarHIP 351877.969407h 16m 19s-16° 42’ 59”
StarHIP 346478.567207h 10m 32s-16° 08’ 15”
StarHIP 345616.0607h 09m 33s-16° 14’ 04”
StarHIP 351777.817207h 16m 12s-17° 17’ 47”
StarHIP 348527.82907h 12m 45s-15° 30’ 06”
StarHIP 351496.862407h 15m 56s-16° 14’ 07”
StarHIP 351698.957407h 16m 07s-16° 44’ 59”
StarHIP 353558.937607h 18m 09s-15° 37’ 41”
StarHIP 348828.743607h 13m 05s-16° 39’ 01”
StarHIP 350357.29907h 14m 48s-15° 28’ 33”
StarHIP 345698.992207h 09m 36s-16° 05’ 46”
StarHIP 345896.57707h 09m 52s-16° 14’ 05”
StarHIP 347256.657207h 11m 25s-17° 19’ 52”
StarHIP 354446.681407h 19m 03s-17° 12’ 47”
StarHIP 354686.703607h 19m 18s-17° 31’ 29”
StarHIP 351805.44207h 16m 14s-15° 35’ 08”

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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