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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 4:56 
Transit: 12:56 
Sunset: 20:58
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All Constellations »  Triangulum »  Deep Sky Objects » 

IC 139 - Association of Stars in Triangulum

Above the horizon.  Rise: 1:12 | Tran: 10:22 | Set: 19:32
Alt: 18.82°   Az: 64.03°   Direction: East-North-East

IC 139 is a Association of Stars in the Triangulum constellation. IC 139 is situated north of the celestial equator and, as such, it is more easily visible from the northern hemisphere. Given its B magnitude of 13.1, IC 139 is visible with the help of a telescope having an aperture of 10 inches (250mm) or more.

The image below is a photograph of IC 139 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 139 - Association of Stars in Triangulum star
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DSS2 image of IC 139 in the Red band.

Celestial Coordinates

Apparent

01h 35m 25s
+30° 41’ 48”
17h 27m 00s
19h 02m 25s

J2000

01h 33m 59s
+30° 34’ 02”

Finder Chart

The simplified sky charts below show the position of IC 139 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 IC 139 - Association of Stars in Triangulum.

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Finder chart for IC 139 - Association of Stars in Triangulum.

Photometric Information

The following table lists the magnitude of IC 139 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).

13.1

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

Rise and Set Times

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

Today's IC 139 - Association of Stars in Triangulum rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 59.3°
Max altitude: 69.2°
Azimuth: 300.7°