We use cookies to deliver essential features and to measure their performance. By using this site you accept our Privacy Policies.
A Complete Guide to the Solar System and the Night Sky
Your support helps us pay the server bills » Donate
public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
SunriseRise: 7:01  
clear_day Transit: 12:12  
SunsetSet: 17:24
sleep NighttimeWhat's Visible Now?
All Constellations »  Triangulum »  Deep Sky Objects » 

IC 221 - Spiral Galaxy in Triangulum

Altitude: -3.9°   Azimuth: 328.1°   Direction: North-North-West

IC 221 is a Spiral Galaxy in the Triangulum constellation. IC 221 is situated north of the celestial equator and, as such, it is more easily visible from the northern hemisphere.

The image below is a photograph of IC 221 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 IC 221 - Spiral Galaxy in Triangulum star
/>
DSS2 image of IC 221 in the Red band. The green region on the image is a representation of the major (1.54 arcmin) and minor (1.19 arcmin) axes of the object's apparent size.

Key facts about IC 221

IC 221
Galaxy
Triangulum

IC 221 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -3.9°
Azimuth: 328.1°
Direction: North-North-West

See also IC 221 rise and set times.

Given its B magnitude of 13.9, IC 221 is visible with the help of a telescope having an aperture of 14 inches (350mm) or more.

Available Resources for IC 221 - Spiral Galaxy in Triangulum

Photometric information of IC 221

The following table lists the magnitude of IC 221 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).

13.9
10.86
10.13
9.89

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 IC 221.

23.28 mag/arcsec2

Apparent size of IC 221

The following table reports IC 221 apparent angular size. The green area displayed on top of the DSS2 image of IC 221 is a visual representation of it.
1.54 arcmin
1.19 arcmin
16°

IC 221 - Spiral Galaxy in Triangulum morphological classification

IC 221 - Spiral Galaxy in Triangulum 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 IC 221 - Spiral Galaxy in Triangulum in the Hubble de Vaucouleurs sequence.

IC 221 - Spiral Galaxy in Triangulum
Visualization of the morphological classification of IC 221 - Spiral Galaxy in Triangulum, Spiral (SAc).
Credits for the background image: Antonio Ciccolella / M. De Leo / CC BY

Celestial coordinates and finder chart of IC 221

Celestial coordinates for the J2000 equinox of IC 221 are provided in the following table:

02h 22m 41s
+28° 15’ 25”

The simplified sky charts below show the position of IC 221 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 IC 221 - Spiral Galaxy in Triangulum star
Simplified finder chart for IC 221 - Spiral Galaxy in Triangulum.

Finder chart IC 221 - Spiral Galaxy in Triangulum star
Simplified finder chart for IC 221 - Spiral Galaxy in Triangulum.

Rise and set times of IC 221 from your location

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

Today's IC 221 - Spiral Galaxy in Triangulum rise, transit and set times from Greenwich, United Kingdom edit_location_alt are the following (all times relative to the local timezone Europe/London):

Azimuth: 61.7°
Max altitude: 66.8°
Azimuth: 298.3°