Celestial hemisphere:  Northern  ·  Constellation: Andromeda (And)  ·  Contains:  14 Tri  ·  15 Tri  ·  2 alf Tri  ·  3 eps Tri  ·  4 bet Tri  ·  47 And  ·  5 Tri  ·  50 ups And  ·  53 tau And  ·  55 And  ·  56 And  ·  57 gam01 And  ·  57 gam02 And  ·  58 And  ·  59 And  ·  60 b And  ·  7 Tri  ·  8 del Tri  ·  9 gam Tri  ·  Almach  ·  IC 171  ·  IC 1713  ·  IC 1732  ·  IC 1773  ·  IC 1784  ·  IC 1792  ·  IC 1793  ·  Metallah  ·  NGC 1002  ·  NGC 551  ·  And 72 more.
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NGC 752 and the Constellation Triangulum, Sigga
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NGC 752 and the Constellation Triangulum

Getting plate-solving status, please wait...
NGC 752 and the Constellation Triangulum, Sigga
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NGC 752 and the Constellation Triangulum

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Description

NGC 752 (also known as Caldwell 28) is an open cluster in the constellation Andromeda. The cluster was discovered by Caroline Herschel in 1783 and cataloged by her brother William Herschel in 1786, although an object that may have been NGC 752 was described by Giovanni Batista Hodierna before 1654.

The large cluster lies 1,300 light-years away from the Earth and is easily seen through binoculars, although it may approach naked eye visibility under good observing conditions. A telescope reveals about 60 stars no brighter than 9th magnitude within NGC 752.

Triangulum is a small constellation in the northern sky. Its name is Latin for "triangle", derived from its three brightest stars, which form a long and narrow triangle. Known to the ancient Babylonians and Greeks, Triangulum was one of the 48 constellations listed by the 2nd century astronomer Ptolemy. The celestial cartographers Johann Bayer and John Flamsteed catalogued the constellation's stars, giving six of them Bayer designations.

--Wikipedia

This another serendipitous example of bad pointing (was aiming for Andromeda) and finding something interesting. I particularly like how constellation Triangulum is so apparent as is not so in sky for visual observation.

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Revisions

  • NGC 752 and the Constellation Triangulum, Sigga
    Original
  • NGC 752 and the Constellation Triangulum, Sigga
    B
  • NGC 752 and the Constellation Triangulum, Sigga
    C
  • NGC 752 and the Constellation Triangulum, Sigga
    D
  • Final
    NGC 752 and the Constellation Triangulum, Sigga
    E

B

Description: Full field image.

Uploaded: ...

C

Description: Fixed red channel and run denoise wavelet plug-in on GIMP, seem work quite nicely.

Uploaded: ...

D

Description: Fixed red channel again as I a blockhead with no attention to detail!

Uploaded: ...

E

Description: Maybe red finally fixed-OPERATOR ERROR!

Yes finally fixed!

Uploaded: ...

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NGC 752 and the Constellation Triangulum, Sigga