czsky/en/star/Herschel_4788.md

498 B

name constellation created_by created_date updated_by updated_date
Herschel 4788 Lup 8mag 2022-01-21 17:00:00 skybber 2022-02-07 15:57:51.588207

a double star that is a good test for a 100-150 mm telescope. On a calm night, this unevenly bright pair of white and yellow stars appears as two disks in contact. However, if there is any turbulence in the atmosphere, the stars merge into one elongated blob. They lie 2.2" apart and their luminosities are 4.7mag and 6.7mag respectively.