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ALS — UBV beta database for Case-Hamburg Northern and Southern Luminous Stars [5] Alter (open star clusters) (for example: Alter 1 at 0:31:56.9 / +63°09'47" in Cassiopeia) (Alter 1 = King 14 = Alter Cluster) Alves / Yun (open star clusters)
Later in July 2020, other observations were also reported, including those related to coma morphology [19] and spectrographic emissions. [ 20 ] [ 21 ] [ 22 ] On 31 July 2020, strong detection of OH 18-cm emission was observed in radio spectroscopic studies at the Arecibo Observatory . [ 23 ]
For the first two years of operation TESS monitored both the southern (year 1) and northern (year 2) celestial hemispheres. During its nominal mission TESS tiles the sky in 26 separate segments, with a 27.4-day observing period per segment. [37] The first southern survey was completed in July 2019. The first northern survey finished in July 2020.
Talitha Borealis in conjunction with the comet C/2020 F3 (NEOWISE) on 18 July 2020 21:30 UTC with an attitude von 17° above the north horizon of Berlin (image height = 4°). At the lower edge of the picture, a bit left from the centre there is the neighbour star Alkaphrah (Kappa Ursae Majoris respectively Talitha Australis).
In 2016, the International Astronomical Union (IAU) organized a Working Group on Star Names (WGSN) [2] to catalog and standardize proper names for stars. The WGSN's first bulletin, dated July 2016, [3] included a table of 125 stars comprising the first two batches of names approved by the WGSN (on 30 June and 20 July 2016) together with names of stars adopted by the IAU Executive Committee ...
A Chandra image of NGC 4485 and NGC 4490: two potential ULXs. In astronomy and astrophysics, an ultraluminous X-ray source (ULX) is less luminous than an active galactic nucleus but more consistently luminous than any known stellar process (over 10 39 erg/s, or 10 32 watts), assuming that it radiates isotropically (the same in all directions).
Best visible at 21:00 (9 p.m.) during the month of June. Corona Borealis is a small constellation in the Northern Celestial Hemisphere . It is one of the 48 constellations listed by the 2nd-century astronomer Ptolemy , and remains one of the 88 modern constellations .
Download QR code; Print/export Download as PDF; ... Galaxy Zoo is a project aiming at a more comprehensive list: launched in July 2007, ...