Subtype Reflection/Emission Declination 25° 20' 00" Absolute magnitude (V) -- | Right ascension 19h 45m 59s Distance 6523 ly (2400 pc) Constellation Vulpecula | |
Sharpless 2-88 or also known as Sh 2-88 is a region of diffuse nebulae northwest of the two nebula knots Sh 2-88A and Sh 2-88B. 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 Msolar and the dust mass is about 2 to 9 Msolar. The nebula is ionized by a 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, it's actual structure is located 2.4 kiloparsecs away, 23 × 15 parsecs in radius, has dynamical age of 1.5 million years, and a mass of 1300 Msolar. It's rms electron density is 9 cm–3.
References
Sharpless 2-88 Wikipedia(Text) CC BY-SA