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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 4870 - Irregular Galaxy in Pavo

Below the horizon.  Never rises today
Alt: -31.63°   Az: 198.96°   Direction: South-South-West

IC 4870 is a Irregular Galaxy in the Pavo constellation. IC 4870 is situated south of the celestial equator and, as such, it is more easily visible from the southern hemisphere. Given its visual magnitude of 14.63, IC 4870 is visible with the help of a telescope having an aperture of 20 inches (500mm) or more.

The image below is a photograph of IC 4870 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 4870 - Irregular Galaxy in Pavo star
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DSS2 image of IC 4870 in the Red band. The green region on the image is a representation of the major (1.67 arcmin) and minor (0.87 arcmin) axes of the object's apparent size.

Celestial Coordinates

Apparent

19h 40m 00s
-65° 45’ 15”
02h 49m 26s
22h 29m 27s

J2000

19h 37m 37s
-65° 48’ 42”

Finder Chart

The simplified sky charts below show the position of IC 4870 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 4870 - Irregular Galaxy in Pavo star
Simplified finder chart for IC 4870 - Irregular Galaxy in Pavo.

Finder chart IC 4870 - Irregular Galaxy in Pavo star
Simplified finder chart for IC 4870 - Irregular Galaxy in Pavo.

Photometric Information

The following table lists the magnitude of IC 4870 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).

13.92
14.63
12.73
12.46
12.12

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 4870.

23.87 mag/arcsec2

Apparent Size

The following table reports IC 4870 apparent angular size. The green area displayed on top of the DSS2 image of IC 4870 is a visual representation of it.
1.67 arcmin
0.87 arcmin
132°

Morphological Classification

IC 4870 - Irregular Galaxy in Pavo is classified as Irregular (I) according to the Hubble and de Vaucouleurs galaxy morphological classification. The diagram below shows a visual representation of the position of IC 4870 - Irregular Galaxy in Pavo in the Hubble de Vaucouleurs sequence.

IC 4870 - Irregular Galaxy in Pavo
Visualization of the morphological classification of IC 4870 - Irregular Galaxy in Pavo, Irregular (I).
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 4870 - Irregular Galaxy in Pavo is currently not visible from Greenwich, UK