HR 7169-70 and a Nebula Trio

Double Star HR 7169 & 7170 in Corona Australis with NGC 6726, 6727 & 6729
Double Star HR 7169 & 7170 in Corona Australis with NGC 6726, 6727 & 6729

Object Name: Double Star HR 7169 & 7170 in Corona Australis with NGC 6726, 6727 & 6729.
Object Type: Double Star with three Bright Nebulae
Location: The Summit of Haleakala on Maui at 10,000 ft. elevation
Date: July 24, 2012
Media: Light pencil on white paper, scanned to GIMP, and color inverted, Labelled in Mac Preview.
Notes: This sketch was executed with a Celestron C925 on a CGEM with a Swan 40mm EP and a Williams Optics 45º erecting prism diagonal at 58X. The wind was 10mph, Temp: 47ºF, Humidity 24% under a first quarter moon at 2130. The Lit. Rho is 12.8″, Theta is 280º. I measured the pair with a Meade 12mm Astrometric EP and obtained an average Rho of 14.8″, and average Theta of 218º.
I am interested in the nebulosity of the three NGC objects that are included in the field of view. I plotted 25 field stars including one outside the F.O.V. to the west and two outside the F.O.V. to the WSW.

Steve McGaughey
Haleakala Amateur Astronomers

2 thoughts on “HR 7169-70 and a Nebula Trio”

  1. Steve,

    I enjoyed your detailed sketch of these doubles with nebulosity. Nice work!

    Cindy (Thia)

  2. WOW Steve!
    Wonderful sketch of the double star duo with nebulosity!
    Really good to see your sketches appearing on ASOD!
    Keep up the sketching…
    Aloha
    Jan

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