We use cookies to deliver essential features and to measure their performance. Learn more.
We're free & ads-free thanks to your support
public LocationGreenwich, UK
TimezoneEurope/London
Sunrise: 4:57 
Transit: 13:04 
Sunset: 21:10
wb_twilight   (Astronomical Twilight)   What's Visible Now?
All Constellations »  Piscis Austrinus »  Deep Sky Objects » 

NGC 7221 - Spiral Galaxy in Piscis Austrinus

Below the horizon.  Rise: 1:01 | Tran: 3:49 | Set: 6:36
Altitude: -9.7°   Azimuth: 127.8°   Direction: South-East

NGC 7221 is a Spiral Galaxy in the Piscis Austrinus constellation. NGC 7221 is situated south of the celestial equator and, as such, it is more easily visible from the southern hemisphere. Given its visual magnitude of 12.13, NGC 7221 is visible with the help of a telescope having an aperture of 8 inches (200mm) or more.

The image below is a photograph of NGC 7221 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).

Image of NGC 7221 - Spiral Galaxy in Piscis Austrinus star
/>
DSS2 image of NGC 7221 in the Red band. The green region on the image is a representation of the major (2.29 arcmin) and minor (1.46 arcmin) axes of the object's apparent size.

Apparent Coordinates

22h 12m 39s
-30° 26’ 29”

J2000 Coordinates

22h 11m 15s
-30° 33’ 47”

Finder Chart

The simplified sky charts below show the position of NGC 7221 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 7221 - Spiral Galaxy in Piscis Austrinus star
Simplified finder chart for NGC 7221 - Spiral Galaxy in Piscis Austrinus.

Finder chart NGC 7221 - Spiral Galaxy in Piscis Austrinus star
Simplified finder chart for NGC 7221 - Spiral Galaxy in Piscis Austrinus.

Photometric Information

The following table lists the magnitude of NGC 7221 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).

13.06
12.13
10.15
9.32
9.19

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 7221.

23.02 mag/arcsec2

Apparent Size

The following table reports NGC 7221 apparent angular size. The green area displayed on top of the DSS2 image of NGC 7221 is a visual representation of it.
2.29 arcmin
1.46 arcmin
13°

Morphological Classification

NGC 7221 - Spiral Galaxy in Piscis Austrinus is classified as Spiral (SAbc) according to the Hubble and de Vaucouleurs galaxy morphological classification. The diagram below shows a visual representation of the position of NGC 7221 - Spiral Galaxy in Piscis Austrinus in the Hubble de Vaucouleurs sequence.

NGC 7221 - Spiral Galaxy in Piscis Austrinus
Visualization of the morphological classification of NGC 7221 - Spiral Galaxy in Piscis Austrinus, Spiral (SAbc).
Credits for the background image: Antonio Ciccolella / M. De Leo / CC BY

Rise and Set Times

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

Today's NGC 7221 - Spiral Galaxy in Piscis Austrinus rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 120.6°
Max altitude: 8.0°
Azimuth: 239.4°