NGC 3077

Coordinates: Sky map 10h 03m 19.1s, +68° 44′ 02″
Source: Wikipedia, the free encyclopedia.
12.8 ± 0.7 Mly (3.9 ± 0.2 Mpc)[2][3][4][a]
Apparent magnitude (V)10.6[1]
Characteristics
TypeI0 pec[1]
Apparent size (V)5.4′ × 4.5′[1]
Other designations
UGC 5398,[1] PGC 29146[1]

NGC 3077 is a small disrupted

emission line galaxy, is today no longer classified as a Seyfert galaxy
.

NGC 3077 was discovered by William Herschel on November 8, 1801. He remarked that "On the nF (NE) side, there is a faint ray interrupting the roundness." Admiral Smyth described it as "A bright-class round nebula; it is a lucid white, and lights up in the centre ... between these [stars,] the sky is intensely black, and shows the nebula as if floating in awful and illimitable space, at an inconceivable distance."

Distance measurements

At least two techniques have been used to measure distances to NGC 3077. The

tip of the red giant branch (TRGB) method may be used to estimate its distance. The estimated distance to NGC 3077 using this technique is 12.5 ± 1.2 Mly (3.82 ± 0.38 Mpc).[3] Averaged together, these distance measurements give a distance estimate of 12.8 ± 0.7 Mly (3.9 ± 0.3 Mpc).[a]

Sources

Notes

  1. ^ average(4.0 ± 0.2,[2] 3.82 ± 0.38[3]) = ((4.0 + 3.82) / 2) ± ((0.22 + 0.382)/2)0.5 = 3.9 ± 0.3

References

  1. ^ a b c d e f g h "NASA/IPAC Extragalactic Database". Results for NGC 3077. Retrieved 2006-12-13.
  2. ^
    S2CID 17628238
    .
  3. ^
    doi:10.1086/382905
    .
  4. S2CID 120973010
    .

External links

Wikimedia Commons has media related to NGC 3077.



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