NGC 7169

NGC 7169
NGC 7169 from the Legacy Surveys DR10 project.[1]
Observation data (J2000 epoch)
ConstellationGrus
Right ascension22h 02m 48.64s[2]
Declination−47° 41′ 52.2″[2]
Redshift0.033240 ± 0.000150[2]
Heliocentric radial velocity9965±45 km/s[2]
Distance469.6 ± 33.0 Mly (143.98 ± 10.12 Mpc)[2]
Apparent magnitude (V)13.6[3]
Apparent magnitude (B)14.6[3]
Surface brightness12.85[3]
Characteristics
TypeLenticular galaxy
Size58.33 kpc (190,200 ly)[2]
Apparent size (V)1.0′ × 0.5′[3]
Notable featuresMorphological type: SAB0−[2]; E/SB0[4][3][5]
Other designations
NGC 7169, PGC 67913

NGC 7169 is a large and relatively distant lenticular galaxy located in the constellation of Grus. Its velocity relative to the cosmic microwave background is 9762±47 km/s, corresponding to a Hubble distance of 470 ± 33 Mly (144 ± 10 Mpc).[2] NGC 7169 was discovered by the British astronomer John Herschel in 1834.

The lenticular galaxy NGC 7169 from the Digitized Sky Survey (DSS)

To date, one distance measurement that is not based on redshift gives a value of 106 Mpc (350 Mly).[6] This value lies well outside the range expected from the Hubble distance. The NASA/IPAC database calculates the diameter of a galaxy using the mean value of independent distance measurements when they are available. Consequently, the diameter of NGC 7169 could be about 79.2 kpc (258,000 ly) if the Hubble distance were used for the calculation.

See also

References

  1. ^ "Interactive Map, Current Data Release: 10.1".
  2. ^ a b c d e f g h "Results for object NGC 7169". NASA/IPAC Extragalactic Database. Retrieved 2024-02-13.
  3. ^ a b c d e "Data from "Revised NGC and IC Catalog by Wolfgang Steinicke", NGC 7100 to 7199" (in French).
  4. ^ Courtney Seligman. "Celestial Atlas Table of Contents, NGC 7150 - 7199". Retrieved 2024-02-13.
  5. ^ "NGC 7169 on HyperLeda". Retrieved 2024-02-13.
  6. ^ "Your NED Search Results. Distance Results for NGC 7169". ned.ipac.caltech.edu. Retrieved 2024-02-13.
Stub icon

This lenticular galaxy article is a stub. You can help Wikipedia by adding missing information.

Content Disclaimer

Informasi ini disarikan dari Wikipedia dan disajikan kembali untuk tujuan edukasi. Konten tersedia di bawah lisensi CC BY-SA 3.0. Kami tidak bertanggung jawab atas ketidakakuratan data yang bersumber dari kontribusi publik tersebut.

  1. The information displayed on this website is sourced in part or in whole from Wikipedia and has been adapted for the purpose of restating it. We strive to provide accurate and relevant information, however:
  2. There is no guarantee of absolute accuracy. Wikipedia is an open, collaborative project that can be edited by anyone, so information is subject to change.
  3. It is not intended to constitute professional advice. The content displayed is for informational and educational purposes only. For important decisions (e.g., medical, legal, or financial), please consult a professional.
  4. Content copyright. Wikipedia is licensed under the Creative Commons Attribution-ShareAlike License (CC BY-SA). This means that content may be reused with appropriate attribution and shared under a similar license.
  5. Responsible use. Any risk arising from the use of information from this website is entirely the responsibility of the user.