Your guide to the Solar System and the night sky
Latest Perseverance Images received 0 hours 25 mins ago for Sol279
Please donate now to help keep TheSkyLive ads-free. This site cannot run without your voluntary donations.
🌎  Greenwich, United Kingdom [change]

NGC 643 - Open Cluster in Hydrus

NGC 643 is a Open Cluster in the Hydrus constellation. NGC 643 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 643
Open Cluster
Hydrus
Available Resources for NGC 643 - Open Cluster in Hydrus

Photometric information of NGC 643

The following table lists the magnitude of NGC 643 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).

12.97
12.29
11.99

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

Apparent size of NGC 643

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

Digitized Sky Survey image of NGC 643

The image below is a photograph of NGC 643 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 643 - Open Cluster in Hydrus star
/>
DSS2 image of NGC 643 in the Red band. The green region on the image is a representation of the major (2.2 arcmin) and minor (2.2 arcmin) axes of the object's apparent size.

Celestial coordinates and finder chart of NGC 643

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

01h 35m 00s
-75° 33’ 24”

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

Finder chart NGC 643 - Open Cluster in Hydrus star
Simplified finder chart for NGC 643 - Open Cluster in Hydrus.

Rise ans set times of NGC 643 from your location

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

NGC 643 - Open Cluster in Hydrus is currently not visible from Greenwich, United Kingdom [change]