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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 7:52 
Transit: 11:51 
Sunset: 15:50
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All Constellations »  Hydra »  Deep Sky Objects » 

IC 531 - Spiral Galaxy in Hydra

Below the horizon.  Rise: 22:13 | Tran: 4:13 | Set: 10:09
Alt: -31.15°   Az: 41.68°   Direction: North-East

IC 531 is a Spiral Galaxy in the Hydra constellation. IC 531 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 B magnitude of 14.44, IC 531 is visible with the help of a telescope having an aperture of 14 inches (350mm) or more.

The image below is a photograph of IC 531 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 IC 531 - Spiral Galaxy in Hydra star
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DSS2 image of IC 531 in the Red band. The green region on the image is a representation of the major (0.79 arcmin) and minor (0.42 arcmin) axes of the object's apparent size.

Celestial Coordinates

Apparent

09h 19m 07s
-00° 23’ 03”
14h 18m 44s
23h 37m 52s

J2000

09h 17m 50s
-00° 16’ 42”

Finder Chart

The simplified sky charts below show the position of IC 531 in the sky. The first chart has a field of view of 60° while the second one has a field of view of 10°.

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Finder chart for IC 531 - Spiral Galaxy in Hydra.

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Finder chart for IC 531 - Spiral Galaxy in Hydra.

Photometric Information

The following table lists the magnitude of IC 531 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).

14.44
11.91
11.02
10.67

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 531.

22.73 mag/arcsec2

Apparent Size

The following table reports IC 531 apparent angular size. The green area displayed on top of the DSS2 image of IC 531 is a visual representation of it.
0.79 arcmin
0.42 arcmin
60°

Morphological Classification

IC 531 - Spiral Galaxy in Hydra is classified as Spiral (SAab) according to the Hubble and de Vaucouleurs galaxy morphological classification. The diagram below shows a visual representation of the position of IC 531 - Spiral Galaxy in Hydra in the Hubble de Vaucouleurs sequence.

IC 531 - Spiral Galaxy in Hydra
Visualization of the morphological classification of IC 531 - Spiral Galaxy in Hydra, Spiral (SAab).
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 IC 531 - Spiral Galaxy in Hydra rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 90.4°
Max altitude: 38.1°
Azimuth: 269.6°