NGC 1685 - Lenticular Galaxy in Orion
NGC 1685 is a Lenticular Galaxy in the Orion constellation. NGC 1685 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.
The image below is a photograph of NGC 1685 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 NGC 1685
NGC 1685 is below the horizon from Greenwich, United Kingdom.
Altitude: -40.8°
Azimuth: 347.2°
Direction: North-North-West
See also NGC 1685 rise and set times.
Given its visual magnitude of 15.18, NGC 1685 is visible with the help of a telescope having an aperture of 20 inches (500mm) or more.
Photometric information of NGC 1685
The following table lists the magnitude of NGC 1685 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.
The surface brightess reported below is an indication of the brightness per unit of angular area of NGC 1685.
Apparent size of NGC 1685
The following table reports NGC 1685 apparent angular size. The green area displayed on top of the DSS2 image of NGC 1685 is a visual representation of it.NGC 1685 - Lenticular Galaxy in Orion morphological classification
NGC 1685 - Lenticular Galaxy in Orion is classified as Lenticular (S0-Aa) according to the Hubble and de Vaucouleurs galaxy morphological classification. The diagram below shows a visual representation of the position of NGC 1685 - Lenticular Galaxy in Orion in the Hubble de Vaucouleurs sequence.
Credits for the background image: Antonio Ciccolella / M. De Leo / CC BY
Celestial coordinates and finder chart of NGC 1685
Celestial coordinates for the J2000 equinox of NGC 1685 are provided in the following table:
The simplified sky charts below show the position of NGC 1685 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 NGC 1685 from your location
Location: Greenwich, United Kingdom
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London
Today's NGC 1685 - Lenticular Galaxy in Orion rise, transit and set times from Greenwich, United Kingdom are the following (all times relative to the local timezone Europe/London):