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The nebula is known as S 142 in the 1959 Sharpless catalog (Sh2-142). [2] It is extremely difficult to observe visually, usually requiring very dark skies and an O-III filter. The NGC 7380 complex is located at a distance of approximately 8.5 kilolight-years from the Sun , in the Perseus Arm of the Milky Way .
The "E" or "Barnard's E" Nebula (officially designated as Barnard 142 and 143) is a pair of dark nebulae in the Aquila constellation. It is a well-defined dark area on a background of Milky Way consisting of countless stars of all magnitudes, getting its name from its resemblance to the letter E in the Latin alphabet. [1]
NGC 2936, NGC 2937, and PGC 1237172 are included in the Atlas of Peculiar Galaxies as Arp 142 in the category "Galaxy triplet". On 20 June 2013, the Hubble Space Telescope examined and photographed NGC 2936. [5] NGC 2936 once had a flat, spiral disk. The orbits of the galaxy's stars have been perturbed due to gravitational tidal interactions ...
The mean expansion velocity of the nebula seems to be slow at 20 km/s at the outer layer, [7] while it also reaches a maximum expansion velocity of 60 km/s relative to its central star. [8] Its central star has a magnitude of around 14m [7] and a temperature of around 47,000--59 000 K. [9] The most characteristic feature of IC 4997 is its ...
Uncertainty in the star's surface temperature, diameter, and distance make it difficult to achieve a precise measurement of Betelgeuse's luminosity, but research from 2012 quotes a luminosity of around 126,000 L ☉, assuming a distance of 200 pc. [142] Studies since 2001 report effective temperatures ranging from 3,250 to 3,690 K.
From this work Sharpless published his catalog of H II regions in two editions: the first in 1953, with 142 nebula; [3] and the second and final edition in 1959, with 312 nebulae. [ 2 ] [ 4 ] Sharpless coordinates are based on the star catalogs Bonner Durchmusterung (BD) and Cordoba Durchmusterung (CD), but the second release was adjusted to ...
Finger of God Globule; E Nebula (Barnard 142 and 143); Barnard 68, possibly the closest to Earth at about 400 light-years.; Le Gentil 3; Sandqvist 111; Sandqvist 112; Sandqvist 150 ...
NGC 3132 (also known as the Eight-Burst Nebula, [2] the Southern Ring Nebula, [2] or Caldwell 74) is a bright and extensively studied planetary nebula in the constellation Vela. Its distance from Earth is estimated at 613 pc or 2,000 light-years .