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Simeis 188 - LBN 29
Simeis 188 + Minkowski 1-41 planetary nebula, NGC 6559, LBN 29
Credit: Giuseppe Donatiello
RA/DEC 18 09 57.6 -24 06 35
Simeis 188 is an interstellar cloud of emission, reflection and dark nebulae. It hosts a star forming region. The 10 mag star HD 166056 which is involved in the brightest part of the nebula is located 1476 parsec away. The 7.3 mag star 11 Sgr is with 1195 parsec closer to us.
The brightest part of this nebula was first sighted by John Herschel on 1 July 1826 using his reflecting telescope with 18.3 inch aperture and 20 feet focal length. In his «Slough Catalogue» of 1833 he listed it as h 1996 and noted: «Several stars affected with nebulosity: The brightest taken.»
On 27 June 1837 observing from South Africa he listed the same nebula as h 3733 and noted: «Very faint, large, oblong, 5' long, 3' broad, place of a double star involved; 6 other stars nearby. Query if involved.»
In his «General catalogue» of 1864 he listed the nebula as GC 4384 and wrote: «very faint, very large, little extended, double star involved.»
In 1888 John L. E. Dreyer then added the nebula as NGC 6559 to his well known «New General Catalogue».
In 1952 the Russian astronomers Grigory Abramovich Shajn and Vera Fedorovna Gaze worked at the Simeiz Observatory in Crimea. They were probably the first ones to realize that the NGC and IC objects are all connected in a large complex: «Four distinct nebulae stand out against the background of S188: IC1274, IC1275, IC4685 and NGC6559.» Later this nebula complex referred to as Simeis (or Simeiz) 188, not to be confused with Sharpless catalogue.
Stewart Sharpless searched in the 1950-ies the photo plates of the «Palomar Observatory Sky Survey» made with the 48 inch Schmidt telescope and identified these objects as one big nebula complex that appeared to be connected to nearby Messier 8. The nebula was cataloged in 1959 as Sh 2-29 (40' diameter), Sh 2-31 (8' diameter) and Sh 2-32 (8' diameter).
The Canadian astronomer Sidney van den Bergh searched the photo plates of the «Palomar Observatory Sky Survey» (POSS) in 1966 and identified the reflection nebulae vdB 115 around star HD 165872.
Planetary Nebula Minkowski 1-41
(PN G006.7-02.2: M 1-41, PK 6-02.1, He 2- 355, Ve 62, VV 152, VV' 355, Wray 17- 112)
RA/DEC 18h 09m 30s -24° 12' 28"
In 1946 the German-American astronomer Rudolph Minkowski found the planetary nebula M 1-41 while he was looking for H-α emissions on the photographic plates taken with the 60 inch or 100 inch telescope on Mount Wilson.
This unusual shaped planetary nebula has a relatively bright irregular central region and faint, very extended bipolar lobes in orientation of PA 9°. The lobes are only visible in infrared at 8 µm. The central star has atemperature of 142'400 K. The planetary nebula is superimposed on the background nebula and lies at a distance of 848 parsec.
Simeis 188 - LBN 29
Simeis 188 + Minkowski 1-41 planetary nebula, NGC 6559, LBN 29
Credit: Giuseppe Donatiello
RA/DEC 18 09 57.6 -24 06 35
Simeis 188 is an interstellar cloud of emission, reflection and dark nebulae. It hosts a star forming region. The 10 mag star HD 166056 which is involved in the brightest part of the nebula is located 1476 parsec away. The 7.3 mag star 11 Sgr is with 1195 parsec closer to us.
The brightest part of this nebula was first sighted by John Herschel on 1 July 1826 using his reflecting telescope with 18.3 inch aperture and 20 feet focal length. In his «Slough Catalogue» of 1833 he listed it as h 1996 and noted: «Several stars affected with nebulosity: The brightest taken.»
On 27 June 1837 observing from South Africa he listed the same nebula as h 3733 and noted: «Very faint, large, oblong, 5' long, 3' broad, place of a double star involved; 6 other stars nearby. Query if involved.»
In his «General catalogue» of 1864 he listed the nebula as GC 4384 and wrote: «very faint, very large, little extended, double star involved.»
In 1888 John L. E. Dreyer then added the nebula as NGC 6559 to his well known «New General Catalogue».
In 1952 the Russian astronomers Grigory Abramovich Shajn and Vera Fedorovna Gaze worked at the Simeiz Observatory in Crimea. They were probably the first ones to realize that the NGC and IC objects are all connected in a large complex: «Four distinct nebulae stand out against the background of S188: IC1274, IC1275, IC4685 and NGC6559.» Later this nebula complex referred to as Simeis (or Simeiz) 188, not to be confused with Sharpless catalogue.
Stewart Sharpless searched in the 1950-ies the photo plates of the «Palomar Observatory Sky Survey» made with the 48 inch Schmidt telescope and identified these objects as one big nebula complex that appeared to be connected to nearby Messier 8. The nebula was cataloged in 1959 as Sh 2-29 (40' diameter), Sh 2-31 (8' diameter) and Sh 2-32 (8' diameter).
The Canadian astronomer Sidney van den Bergh searched the photo plates of the «Palomar Observatory Sky Survey» (POSS) in 1966 and identified the reflection nebulae vdB 115 around star HD 165872.
Planetary Nebula Minkowski 1-41
(PN G006.7-02.2: M 1-41, PK 6-02.1, He 2- 355, Ve 62, VV 152, VV' 355, Wray 17- 112)
RA/DEC 18h 09m 30s -24° 12' 28"
In 1946 the German-American astronomer Rudolph Minkowski found the planetary nebula M 1-41 while he was looking for H-α emissions on the photographic plates taken with the 60 inch or 100 inch telescope on Mount Wilson.
This unusual shaped planetary nebula has a relatively bright irregular central region and faint, very extended bipolar lobes in orientation of PA 9°. The lobes are only visible in infrared at 8 µm. The central star has atemperature of 142'400 K. The planetary nebula is superimposed on the background nebula and lies at a distance of 848 parsec.