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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 7:05 
Transit: 11:43 
Sunset: 16:21
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All Constellations »  Hydra »  Deep Sky Objects » 

NGC 4955 - Elliptical Galaxy in Hydra

Below the horizon.  Rise: 7:04 | Tran: 9:59 | Set: 12:53
Alt: -65.07°   Az: 36.46°   Direction: North-East

NGC 4955 is a Elliptical Galaxy in the Hydra constellation. NGC 4955 is situated south of the celestial equator and, as such, it is more easily visible from the southern hemisphere. Given its B magnitude of 12.89, NGC 4955 is visible with the help of a telescope having an aperture of 10 inches (250mm) or more.

The image below is a photograph of NGC 4955 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 4955 - Elliptical Galaxy in Hydra star
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DSS2 image of NGC 4955 in the Red band. The green region on the image is a representation of the major (2.34 arcmin) and minor (1.72 arcmin) axes of the object's apparent size.

Celestial Coordinates

Apparent

13h 07m 26s
-29° 53’ 12”
13h 07m 10s
02h 14m 37s

J2000

13h 06m 05s
-29° 45’ 15”

Finder Chart

The simplified sky charts below show the position of NGC 4955 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 4955 - Elliptical Galaxy in Hydra star
Simplified finder chart for NGC 4955 - Elliptical Galaxy in Hydra.

Finder chart NGC 4955 - Elliptical Galaxy in Hydra star
Simplified finder chart for NGC 4955 - Elliptical Galaxy in Hydra.

Photometric Information

The following table lists the magnitude of NGC 4955 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).

12.89
9.85
9.2
8.91

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 4955.

23.87 mag/arcsec2

Apparent Size

The following table reports NGC 4955 apparent angular size. The green area displayed on top of the DSS2 image of NGC 4955 is a visual representation of it.
2.34 arcmin
1.72 arcmin
15°

Morphological Classification

NGC 4955 - Elliptical Galaxy in Hydra is classified as Elliptical (E) according to the Hubble and de Vaucouleurs galaxy morphological classification. The diagram below shows a visual representation of the position of NGC 4955 - Elliptical Galaxy in Hydra in the Hubble de Vaucouleurs sequence.

NGC 4955 - Elliptical Galaxy in Hydra
Visualization of the morphological classification of NGC 4955 - Elliptical Galaxy in Hydra, Elliptical (E).
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 4955 - Elliptical Galaxy in Hydra rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 119.9°
Max altitude: 8.6°
Azimuth: 240.1°