Messier 29

From DeepSkyPedia

Share/Save/Bookmark
Jump to:navigation, search
open cluster
M 28 <<  Messier 29  >> M 30 
Cr 421 <<  Collinder 422  >> Cr 423 

Messier 29 by Vedran Vrhovac.jpg
Sketch by Vedran Vrhovac

Position (epoch J2000) [1]
Constellation Cygnus
Position Ra 20:23:57.7
Dec +38:30:28
DSS images

10' · 20' · 30' · 45' · 1°

Appearance [1]

Apparent mag. 6.6
Size 10'
Class II 3 m n
Stars
Dreyer's description  Cl P lC st L and *
Other
Other designations M 29, NGC 6913, Collinder 422, Cr 422, Lund 952 and OCL 168
Notes
Edit this infobox

Messier 29 is an open cluster in Cygnus.

Contents

[edit] How to find it

[edit] Appearance

Some 7 or 8 brightest stars stand out from the rest. The eight brightest stars are arranged in two opposing arcs.

[edit] Naked eye

There are no reports of seeing M 29 with the naked eye, although its magnitude of 6.6 suggest that it might be possible under perfect conditions.

[edit] Telescopes up to 70mm, binoculars up to 50 mm, and finders

Very small instrument (like 10x46 monocular) will propably show nothing more than the Milky Way[2], binoculars 7x35 will show only small haze[3], and 10x50 binos might, beside small haze, show some stars on the verge of being resolved[4].

More reports:

[edit] Telescopes 71mm - 100mm (2.8" - 3.9"), binoculars 51mm - 70mm

In 80mm telescope at low power (11x, finder[5]) or in 12x60 binoculars[6], M 29 fits the same FOV as Sadr (Gamma Cyg). The cluster appears as a bright diffuzion, not unlike a globular cluster[6]. Around 4 to 5 stars can be resolved, but it might require using averted vision.[6][5]

Raising power to cca 20x in 80 mm refractor[7] or using 20x70 binoculars[6] will make cluster appear as loosely scattered open cluster of approximately 10 to 12 stars. Stars are arranged in shape of rectangle or letter "H" with 6 or 7 stars being much brighter than the others[6][7].

[edit] Telescopes 101mm - 141mm (4" - 5.5"), binoculars 71mm - 100mm

An 102-mm to 120-mm refractor at low power (25x - 30x) will show a small group of stars[8][9].

The cluster looks much better at 45x or higher. Using averted vision, between 8 and 15 can be resolved from the haze. Background might appear nebulous.[10][8][11][11][12][13]

More reports:

[edit] Telescopes 141mm - 177mm (5.6" - 6.9")

[edit] Telescopes 178mm - 234mm (7" - 9.2")

[edit] Telescopes 235mm - 305mm (9.25" - 12")

[edit] Telescopes 306mm - 381mm (12.1" - 15")

[edit] Telescopes above 15"

[edit] Notes

[edit] References

  1. ↑ 1.0 1.1 Historic NGC and IC by Wolfgang Steinicke (version Nov. 20, 2006.)
  2. ↑ (IAAC) M29 , Lew Gramer , handheld monocular , d=46mm , f=?mm , 10x , 01 May 1999 , Medford, MA, USA (42N) , LM: 4.0
  3. ↑ Messier 29 @ Deepskylog 2.0 , Matt Dangel , Tasco 7x35 , 06-19-1996 , Sherman (Dangel) , LM: 5.0
  4. ↑ (IAAC) M29 , Lew Gramer , binoculars 10x50 , 1997-07-25/26 , Medford, MA, USA (42N) , LM: 5.8 , seeing: 5/10 (mediocre)
  5. ↑ 5.0 5.1 Cygnus by Steve Coe - M 29 , Steve Coe , finder , d=80mm , d=80" , f=80mm , f=80" , 11x
  6. ↑ 6.0 6.1 6.2 6.3 6.4 x.astrogeek.org , Jeff Burton , Oberwerk FMC Mini-Giant 12x60mm Binoculars, Orion Little Giant II 20x70mm Binoculars , June 16, 2001 , Paducah, KY, USA , LM: 4.5 , seeing: 8/10
  7. ↑ 7.0 7.1 x.astrogeek.org , Jeff Burton , Celestron Wide View 80mm Refractor, Meade LX200GPS 203mm SCT , 22x, 74x , July 26, 2003 , Pennyrile State Park, KY, USA , LM: 5.67 , seeing: Antoniadi III
  8. ↑ 8.0 8.1 x.astrogeek.org , Jeff Burton , Meade DS-114EC 114mm Reflector , 28x, 54x , October 21, 2001 , Golden Pond Observatory, KY, USA , LM: 6 - 6.5 , seeing: Seeing: 8/10
  9. ↑ (IAAC) Luis Arguelles , Achromatic refractor (f/9.8) , d=102 mmmm , d=1000 mm" , 25x, 50x , July,22,1998 , Santander, Spain , LM: 4.5 , seeing: 6/10
  10. ↑ Sketch included! Messier 29 (sketch and report) , Rony De Laet , ETX , d=105mmmm , f=105mmmm , September 03, 2005 , Bekkevoort, Belgium , seeing: 3.5/5 , Tr.: 2.5/5
  11. ↑ 11.0 11.1 x.astrogeek.org , Jeff Burton , Meade DS-114EC 114mm Reflector , 28x, 46x , November 1, 2008 , Columbine Drive, Dunlap, IL, USA , LM: 4.9 (SQM) , seeing: Antoniadi III
  12. ↑ x.astrogeek.org , Jeff Burton , Orion AstroView 120ST 120mm Refractor , 55x , September 8, 2004 , Columbine Drive, Dunlap, IL, USA , LM: 4.5-5 , seeing: Antoniadi II/III
  13. ↑ x.astrogeek.org , Jeff Burton , Orion AstroView 120ST 120mm Refractor , 86x , September 21, 2007 , Columbine Drive, Dunlap, IL, USA , LM: 4-4.5 , seeing: Antoniadi III

[edit] Links

W.pngikipedia has an article on Messier 29   

Retrieved from "http://deepskypedia.com/wiki/Messier_29"
Navigation
Toolbox
Google AdSense