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public LocationGreenwich, UK
TimezoneEurope/London
Sunrise: 5:12 
Transit: 13:06 
Sunset: 20:59
wb_twilight   (Nautical Twilight)   What's Visible Now?
All Constellations »  Sagittarius »  Deep Sky Objects » 

NGC 6439 - Planetary Nebula in Sagittarius

Above the horizon.  Rise: 18:10 | Tran: 22:41 | Set: 3:16
Alt: 21.34°   Az: 168.51°   Direction: South-South-East

NGC 6439 is a Planetary Nebula in the Sagittarius constellation. NGC 6439 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 visual magnitude of 12.6, NGC 6439 is visible with the help of a telescope having an aperture of 10 inches (250mm) or more.

The image below is a photograph of NGC 6439 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 6439 - Planetary Nebula in Sagittarius star
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DSS2 image of NGC 6439 in the Red band. The green region on the image is a representation of the major (0.08 arcmin) and minor (0.08 arcmin) axes of the object's apparent size.

Celestial Coordinates

Apparent

17h 49m 45s
-16° 29’ 07”
23h 15m 23s
17h 05m 08s

J2000

17h 48m 20s
-16° 28’ 44”

Finder Chart

The simplified sky charts below show the position of NGC 6439 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 NGC 6439 - Planetary Nebula in Sagittarius star
Simplified finder chart for NGC 6439 - Planetary Nebula in Sagittarius.

Finder chart NGC 6439 - Planetary Nebula in Sagittarius star
Simplified finder chart for NGC 6439 - Planetary Nebula in Sagittarius.

Photometric Information

The following table lists the magnitude of NGC 6439 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).

13.8
12.6
12.62
12.65
11.76

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

Apparent Size

The following table reports NGC 6439 apparent angular size. The green area displayed on top of the DSS2 image of NGC 6439 is a visual representation of it.
0.08 arcmin
0.08 arcmin

Rise and Set Times

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

Today's NGC 6439 - Planetary Nebula in Sagittarius rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 106.5°
Max altitude: 22.0°
Azimuth: 253.5°