NGC 1990 (Alnilam) - Star in Orion
NGC 1990 is a Star in the Orion constellation. NGC 1990 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 1.69, NGC 1990 is visible to the naked eye under dark skies, might require a small binocular from light polluted areas.
The image below is a photograph of NGC 1990 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).
Celestial Coordinates
Apparent
J2000
Finder Chart
The simplified sky charts below show the position of NGC 1990 in the sky. The first chart has a field of view of 60° while the second one has a field of view of 10°.
Photometric Information
The following table lists the magnitude of NGC 1990 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.
Rise and Set Times
Location: Greenwich, UK
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London
Today's NGC 1990 (Alnilam) - Star in Orion rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):