NGC 806

NGC 806
NGC 806 (SDSS)
Observation data (J2000.0 epoch)
ConstellationCetus
Right ascension02h 03m 31.15s [1]
Declination−09° 56′ 00.15″ [1]
Redshift0.013156 [1]
Heliocentric radial velocity3944 ± 9 km/s [1]
Distance166 Mly[2]
Apparent magnitude (V)14.10 [3]
Apparent magnitude (B)14.80 [3]
Characteristics
TypeScd pec? HII [1]
Apparent size (V)1.2 x 0.4 [1]
Other designations
PGC 7835, MCG -2-6-21

NGC 806 is a spiral galaxy approximately 166 million light-years away from Earth in the constellation Cetus.[1] It was discovered by American astronomer Lewis A. Swift on November 1, 1886 with the 16" refractor at Warner Observatory.[4]

  1. ^ a b c d e f g Cite error: The named reference Database was invoked but never defined (see the help page).
  2. ^ An object's distance from Earth can be determined using Hubble's law: v=Ho is Hubble's constant (70±5 (km/s)/Mpc). The relative uncertainty Δd/d divided by the distance is equal to the sum of the relative uncertainties of the velocity and v=Ho
  3. ^ a b Cite error: The named reference seds was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference astronomy-mall was invoked but never defined (see the help page).