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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 7:08 
Transit: 12:48 
Sunset: 18:26
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All Constellations »  Pavo »  Deep Sky Objects » 

IC 4901 - Intermediate Spiral Galaxy in Pavo

Below the horizon.  Never rises today
Alt: -24.16°   Az: 200.06°   Direction: South-South-West

IC 4901 is a Intermediate Spiral Galaxy in the Pavo constellation. IC 4901 is situated south of the celestial equator and, as such, it is more easily visible from the southern hemisphere. Given its B magnitude of 12.29, IC 4901 is visible with the help of a telescope having an aperture of 8 inches (200mm) or more.

The image below is a photograph of IC 4901 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 IC 4901 - Intermediate Spiral Galaxy in Pavo star
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DSS2 image of IC 4901 in the Red band. The green region on the image is a representation of the major (3.68 arcmin) and minor (2.54 arcmin) axes of the object's apparent size.

Celestial Coordinates

Apparent

19h 56m 27s
-58° 38’ 49”
02h 27m 56s
22h 24m 23s

J2000

19h 54m 24s
-58° 42’ 48”

Finder Chart

The simplified sky charts below show the position of IC 4901 in the sky. The first chart has a field of view of 60° while the second one has a field of view of 10°.

Finder chart IC 4901 - Intermediate Spiral Galaxy in Pavo star
Simplified finder chart for IC 4901 - Intermediate Spiral Galaxy in Pavo.

Finder chart IC 4901 - Intermediate Spiral Galaxy in Pavo star
Simplified finder chart for IC 4901 - Intermediate Spiral Galaxy in Pavo.

Photometric Information

The following table lists the magnitude of IC 4901 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).

12.29
9.69
9.2
8.85

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 IC 4901.

23.22 mag/arcsec2

Apparent Size

The following table reports IC 4901 apparent angular size. The green area displayed on top of the DSS2 image of IC 4901 is a visual representation of it.
3.68 arcmin
2.54 arcmin
130°

Morphological Classification

IC 4901 - Intermediate Spiral Galaxy in Pavo is classified as Intermediate Spiral (SABc) according to the Hubble and de Vaucouleurs galaxy morphological classification. The diagram below shows a visual representation of the position of IC 4901 - Intermediate Spiral Galaxy in Pavo in the Hubble de Vaucouleurs sequence.

IC 4901 - Intermediate Spiral Galaxy in Pavo
Visualization of the morphological classification of IC 4901 - Intermediate Spiral Galaxy in Pavo, Intermediate Spiral (SABc).
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

IC 4901 - Intermediate Spiral Galaxy in Pavo is currently not visible from Greenwich, UK