IC 1644 - HII Ionized region in Tucana
IC 1644 is a HII Ionized region in the Tucana constellation. IC 1644 is situated south of the celestial equator and, as such, it is more easily visible from the southern hemisphere.
The image below is a photograph of IC 1644 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).
Key facts about IC 1644
IC 1644 is below the horizon from Greenwich, United Kingdom.
Altitude: -66.7°
Azimuth: 165.6°
Direction: South-South-East
See also IC 1644 rise and set times.
Given its visual magnitude of 11.7, IC 1644 is visible with the help of a telescope having an aperture of 8 inches (200mm) or more.
Photometric information of IC 1644
The following table lists the magnitude of IC 1644 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).
For more information about photometry in astronomy, check the photometric system article on Wikipedia.
Apparent size of IC 1644
The following table reports IC 1644 apparent angular size. The green area displayed on top of the DSS2 image of IC 1644 is a visual representation of it.Celestial coordinates and finder chart of IC 1644
Celestial coordinates for the J2000 equinox of IC 1644 are provided in the following table:
The simplified sky charts below show the position of IC 1644 in the sky. The first chart has a field of view of 60° while the second one has a field of view of 10°.
Rise and set times of IC 1644 from your location
Location: Greenwich, United Kingdom
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London
IC 1644 - HII Ionized region in Tucana is currently not visible from Greenwich, United Kingdom