UGC 9128

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UGC 9128
UGC 9128
Observation data (J2000 epoch)
ConstellationBoötes
Right ascension14h 15m 56.70s[1]
Declination23° 03′ 16.2″[1]
Distance6.8–7.8 Mly (2.1–2.4 Mpc)[2][3]
Characteristics
TypedIrr[4]
Mass(1.3±0.2)×107 [3] M☉
Size3300 ly[5]
Other designations
UGC 9128, DDO 187[6],PGC 50961

UGC 9128 is a

stars, and a diameter of around 3300 ly.[3][5] It is therefore quite faint, and so was only discovered in the 20th century.[2]

UGC 9128 is around 2.7 Mly from GR 8, which is its nearest neighbour.[6]

UGC 9128 is a starburst galaxy, with the peak of star formation being 20–100 million years ago.[3][6] It is thought to have both a halo and disc.[6]

References

  1. ^
    S2CID 122517686
    .
  2. ^ a b c "Dwarf galaxy: small but perfectly formed". www.spacetelescope.org. Retrieved 8 August 2021.
  3. ^ a b c d e "Dynamics of starbursting dwarf galaxies" (PDF). Retrieved 8 August 2021.
  4. S2CID 118515618
    .
  5. ^ a b Plait, Phil (25 April 2011). "And the cottonball galaxies shall inherit the Universe". Slate Magazine. Retrieved 8 August 2021.
  6. ^
    S2CID 15309075. Retrieved 8 August 2021. {{cite journal}}: Cite journal requires |journal= (help
    )
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