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2. Whirlpool Galaxy - Wikipedia

   en.wikipedia.org/wiki/Whirlpool_Galaxy

   The Whirlpool Galaxy lies at a distance of 23 [2] to 31 million light-years from Earth. [18] Based on the 1991 measurement by the Third Reference Catalogue of Bright Galaxies using the D 25 isophote at the B-band, the Whirlpool Galaxy has a diameter of 23.58 kiloparsecs (76,900 light-years). [2] [5] Overall the galaxy is about 88% the size of ...

3. BX442 - Wikipedia

   en.wikipedia.org/wiki/BX442

   BX442 (Q2343-BX442 [1]) is a grand design spiral galaxy of type Sc. [1] It has a companion dwarf galaxy.It is the most distant known grand design spiral galaxy in the universe, with a redshift of z=2.1765 ± 0.0001. [1]

4. Messier 63 - Wikipedia

   en.wikipedia.org/wiki/Messier_63

   Messier 63 or M63, also known as NGC 5055 or the seldom-used Sunflower Galaxy, [6] is a spiral galaxy in the northern constellation of Canes Venatici with approximately 400 billion stars. [7] M63 was first discovered by the French astronomer Pierre Méchain , then later verified by his colleague Charles Messier on 14 June 1779. [ 6 ]

5. NGC 4449 - Wikipedia

   en.wikipedia.org/wiki/NGC_4449

   Photos of the galaxy show the pinkish glow of atomic hydrogen gas, the telltale tracer of massive star forming regions. NGC 4449 is surrounded by a large envelope of neutral hydrogen that extends over an area of 75 arc minutes (14 times larger than the optical diameter of the galaxy). The envelope shows distortions and irregularities likely ...

6. NGC 7752 and NGC 7753 - Wikipedia

   en.wikipedia.org/wiki/NGC_7752_and_NGC_7753

   NGC 7753 is the primary galaxy. It is a barred spiral galaxy with a small nucleus. NGC 7752 is the satellite galaxy of NGC 7753. It is a barred lenticular galaxy that is apparently attached to one of NGC 7753's spiral arms. They resemble the Whirlpool Galaxy (M51A) and its satellite NGC 5195 (M51B).

7. The Scale of the Universe - Wikipedia

   en.wikipedia.org/wiki/The_Scale_of_the_Universe

   Cartwheel Galaxy — 150,000 light years 1.5 × 10 21 meters Pinwheel Galaxy: 1.8 × 10 21 meters 170,000 light years 1.7 × 10 21 meters Whirlpool Galaxy — 180,000 light years 1.8 × 10 21 meters NGC 1232: 2 × 10 21 meters 220,000 light years 2.2 × 10 21 meters Virgo A: 2.5 × 10 21 meters 250,000 light years 2.5 × 10 21 meters Tadpole ...