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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 7:15 
Transit: 12:47 
Sunset: 18:17
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All Constellations »  Pavo »  Deep Sky Objects » 

IC 4973 - Spiral Galaxy in Pavo

Below the horizon.  Never rises today
Alt: -59.60°   Az: 123.94°   Direction: South-East

IC 4973 is a Spiral Galaxy in the Pavo constellation. IC 4973 is situated south of the celestial equator and, as such, it is more easily visible from the southern hemisphere. Given its B magnitude of 15.8, IC 4973 is visible only through long exposure photography.

The image below is a photograph of IC 4973 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 4973 - Spiral Galaxy in Pavo star
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DSS2 image of IC 4973 in the Red band. The green region on the image is a representation of the major (0.66 arcmin) and minor (0.35 arcmin) axes of the object's apparent size.

Celestial Coordinates

Apparent

20h 16m 34s
-58° 17’ 39”
15h 32m 04s
11h 48m 39s

J2000

20h 14m 34s
-58° 22’ 15”

Finder Chart

The simplified sky charts below show the position of IC 4973 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 4973 - Spiral Galaxy in Pavo star
Simplified finder chart for IC 4973 - Spiral Galaxy in Pavo.

Finder chart IC 4973 - Spiral Galaxy in Pavo star
Simplified finder chart for IC 4973 - Spiral Galaxy in Pavo.

Photometric Information

The following table lists the magnitude of IC 4973 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).

15.8
13.61
12.72
12.84

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 4973.

23.28 mag/arcsec2

Apparent Size

The following table reports IC 4973 apparent angular size. The green area displayed on top of the DSS2 image of IC 4973 is a visual representation of it.
0.66 arcmin
0.35 arcmin

Morphological Classification

IC 4973 - Spiral Galaxy in Pavo is classified as Spiral (SAbc) according to the Hubble and de Vaucouleurs galaxy morphological classification. The diagram below shows a visual representation of the position of IC 4973 - Spiral Galaxy in Pavo in the Hubble de Vaucouleurs sequence.

IC 4973 - Spiral Galaxy in Pavo
Visualization of the morphological classification of IC 4973 - Spiral Galaxy in Pavo, 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 4973 - Spiral Galaxy in Pavo is currently not visible from Greenwich, UK