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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 »  Hydrus »  Deep Sky Objects » 

NGC 646 NED01 - Galaxy in Hydrus

Below the horizon.  Never rises today
Alt: -27.93°   Az: 167.94°   Direction: South-South-East

NGC 646 NED01 is a Galaxy in the Hydrus constellation. NGC 646 NED01 is situated south of the celestial equator and, as such, it is more easily visible from the southern hemisphere. Given its B magnitude of 14.24, NGC 646 NED01 is visible with the help of a telescope having an aperture of 14 inches (350mm) or more.

The image below is a photograph of NGC 646 NED01 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 646 NED01 -  Galaxy in Hydrus star
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DSS2 image of NGC 646 NED01 in the Red band. The green region on the image is a representation of the major (1.23 arcmin) and minor (0.97 arcmin) axes of the object's apparent size.

Celestial Coordinates

Apparent

01h 38m 09s
-64° 45’ 58”
22h 17m 23s
23h 55m 32s

J2000

01h 37m 21s
-64° 53’ 41”

Finder Chart

The simplified sky charts below show the position of NGC 646 NED01 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 NGC 646 NED01 - Galaxy in Hydrus.

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Finder chart for NGC 646 NED01 - Galaxy in Hydrus.

Photometric Information

The following table lists the magnitude of NGC 646 NED01 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).

14.24
12.2
11.42
11.09

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 NGC 646 NED01.

23.15 mag/arcsec2

Apparent Size

The following table reports NGC 646 NED01 apparent angular size. The green area displayed on top of the DSS2 image of NGC 646 NED01 is a visual representation of it.
1.23 arcmin
0.97 arcmin
127°

Morphological Classification

NGC 646 NED01 - Galaxy in Hydrus is classified as according to the Hubble and de Vaucouleurs galaxy morphological classification. The diagram below shows a visual representation of the position of NGC 646 NED01 - Galaxy in Hydrus in the Hubble de Vaucouleurs sequence.

NGC 646 NED01 - Galaxy in Hydrus
Visualization of the morphological classification of NGC 646 NED01 - Galaxy in Hydrus, .
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

NGC 646 NED01 - Galaxy in Hydrus is currently not visible from Greenwich, UK