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Sh2-88 in Vulpecula in Ha & OIII, 


            Douglas J Struble
Sh2-88 in Vulpecula in Ha & OIII
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Sh2-88 in Vulpecula in Ha & OIII

Technical card

Dates:Aug. 2, 2019Aug. 6, 2019

Astrodon Ha 5nm: 209x120" (gain: 200.00) -20C bin 1x1
Astrodon OIII 3nm: 500x120" (gain: 200.00) -20C bin 1x1

Integration: 23.6 hours

Darks: ~50

Flats: ~50

Bias: ~250

Avg. Moon age: 3.84 days

Avg. Moon phase: 19.64%

Bortle Dark-Sky Scale: 8.00

Basic astrometry details job: 3251155

RA center: 19h 45' 44"

DEC center: +25° 20' 16"

Pixel scale: 0.648 arcsec/pixel

Orientation: 45.227 degrees

Field radius: 0.459 degrees

Resolution: 3183x3982

Locations: Backyard White Zone Observatory, Taylor, MI, Michigan, United States

Data source: Backyard


Sharpless 2-88 or Sh 2-88 is a region of diffuse nebulae northwest of the nebula knots Sh 2-88A, Sh 2-88B1, and Sh 2-88B2, which are all associated with Vulpecula OB1. This nebula is a HII type diffuse nebula excited by the type O8 star BD +26°3952. Both neutral and ionized gases in Sh 2-88 are between 150 and 410 solar masses and the dust mass is about 2 to 9 solar masses. The nebula is ionized by an O8.5 to 9.5V star. The structure been interacting with a HI interstellar bubble shaped by the stellar winds of BD +26°3952 and the blue O8.5II(f) star BD +25°3866. Overall, its actual structure is located 2.4 kiloparsecs away, at 23 × 15 parsecs in radius. It has a dynamical age of 1.5 million years, and a mass of 1,300 solar masses. It has an rms electron density of 9 cm–3. All separate star forming regions are 1 arcminute in diameter.



Douglas J Struble
License: None (All rights reserved)

Sky plot

Sky plot


Sh2-88 in Vulpecula in Ha & OIII, 


            Douglas J Struble

In these public groups

Sharpless2 Objects