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In Evidence

New Comet C/2025 J1 (Borisov) Discovered in May 2025
Detailed information about the discovery of Comet C/2025 J1 (Borisov) and pointers to useful resources to track and observe it. Read more...

Other deep sky objects in Cetus
All Constellations »  Cetus »  Deep Sky Objects » 

NGC 191A - Lenticular Galaxy in Cetus

Below the horizon.  Rise: 4:45 | Tran: 9:59 | Set: 15:12
Alt: -46.61°   Az: 14.49°   Direction: North-North-East

NGC 191A is a Lenticular Galaxy in the Cetus constellation. NGC 191A is situated close to the celestial equator and, as such, it is at least partly visible from both hemispheres in certain times of the year. Given its B magnitude of 15, NGC 191A is visible with the help of a telescope having an aperture of 20 inches (500mm) or more.

The image below is a photograph of NGC 191A from the Digitized Sky Survey 2 (DSS2 - see the credits section) taken in the red channel. The area of sky represented in the image is 0.5000x0.5000 degrees (30.00x30.00 arcmins).

Image of NGC 191A - Lenticular Galaxy in Cetus star
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DSS2 image of NGC 191A in the Red band. The green region on the image is a representation of the major (0.87 arcmin) and minor (0.3 arcmin) axes of the object's apparent size.

Celestial Coordinates

Apparent

00h 40m 17s
-08° 52’ 32”
12h 40m 04s
13h 20m 21s

J2000

00h 39m 00s
-09° 00’ 52”

Finder Chart

The simplified sky charts below show the position of NGC 191A in the sky. The first chart has a field of view of 60° while the second one has a field of view of 10°.

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Finder chart for NGC 191A - Lenticular Galaxy in Cetus.

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Finder chart for NGC 191A - Lenticular Galaxy in Cetus.

Photometric Information

The following table lists the magnitude of NGC 191A in different bands of the electomagnetic spectrum (when available), from the B band (445nm wavelength, corresponding to the Blue color), to the V band ( 551nm wavelength, corresponding to Green/Yellow color), to the J, H, K bands (corresponding to 1220nm, 1630nm, 2190nm wavelengths respectively, which are colors not visible to the human eye).

15

For more information about photometry in astronomy, check the photometric system article on Wikipedia.

The surface brightess reported below is an indication of the brightness per unit of angular area of NGC 191A.

23.1 mag/arcsec2

Apparent Size

The following table reports NGC 191A apparent angular size. The green area displayed on top of the DSS2 image of NGC 191A is a visual representation of it.
0.87 arcmin
0.3 arcmin
147°

Morphological Classification

NGC 191A - Lenticular Galaxy in Cetus is classified as Lenticular (S0) according to the Hubble and de Vaucouleurs galaxy morphological classification. The diagram below shows a visual representation of the position of NGC 191A - Lenticular Galaxy in Cetus in the Hubble de Vaucouleurs sequence.

NGC 191A - Lenticular Galaxy in Cetus
Visualization of the morphological classification of NGC 191A - Lenticular Galaxy in Cetus, Lenticular (S0).
Credits for the background image: Antonio Ciccolella / M. De Leo / CC BY

Rise and Set Times

Location: Greenwich, UK
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

Today's NGC 191A - Lenticular Galaxy in Cetus rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 98.9°
Max altitude: 29.6°
Azimuth: 261.1°