Your guide to the Solar System and the night sky
Please donate now to help keep TheSkyLive ads-free. This site cannot run without your voluntary donations.
🌎  Greenwich, United Kingdom [change]

NGC 643C - Spiral Galaxy in Hydrus

NGC 643C is a Spiral Galaxy in the Hydrus constellation. NGC 643C is situated close to the southern celestial pole and, as such, it is easilty visible for most part of the year from the southern hemisphere.

NGC 643C
Galaxy
Hydrus
  • NGC 643C is below the horizon from Greenwich, United Kingdom [change]. See also rise and set times.
  • Given its B magnitude of 15.7, NGC 643C is visible only through long exposure photography.
Available Resources for NGC 643C - Spiral Galaxy in Hydrus

Photometric information of NGC 643C

The following table lists the magnitude of NGC 643C 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).

15.7
12.6
11.82
11.55

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 643C.

23.64 mag/arcsec2

Apparent size of NGC 643C

The following table reports NGC 643C apparent angular size. The green area displayed on top of the DSS2 image of NGC 643C is a visual representation of it.
1.4 arcmin
0.23 arcmin
153°

Digitized Sky Survey image of NGC 643C

The image below is a photograph of NGC 643C 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 0.5x0.5 degrees (30x30 arcmins).

Image of NGC 643C - Spiral Galaxy in Hydrus star
/>
DSS2 image of NGC 643C in the Red band. The green region on the image is a representation of the major (1.4 arcmin) and minor (0.23 arcmin) axes of the object's apparent size.

NGC 643C - Spiral Galaxy in Hydrus morphological classification

NGC 643C - Spiral Galaxy in Hydrus is classified as Spiral (SAc) according to the Hubble and de Vaucouleurs galaxy morphological classification. The diagram below shows a visual representation of the position of NGC 643C - Spiral Galaxy in Hydrus in the Hubble de Vaucouleurs sequence.

NGC 643C - Spiral Galaxy in Hydrus
Visualization of the morphological classification of NGC 643C - Spiral Galaxy in Hydrus, Spiral (SAc).
Credits for the background image: Antonio Ciccolella / M. De Leo / CC BY

Celestial coordinates and finder chart of NGC 643C

Celestial coordinates for the J2000 equinox of NGC 643C are provided in the following table:

01h 41m 48s
-75° 16’ 05”

The simplified sky charts below show the position of NGC 643C 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 643C - Spiral Galaxy in Hydrus star
Simplified finder chart for NGC 643C - Spiral Galaxy in Hydrus.

Finder chart NGC 643C - Spiral Galaxy in Hydrus star
Simplified finder chart for NGC 643C - Spiral Galaxy in Hydrus.

Rise ans set times of NGC 643C from your location

Location: Greenwich, United Kingdom [change]
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

NGC 643C - Spiral Galaxy in Hydrus is currently not visible from Greenwich, United Kingdom [change]