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public LocationGreenwich, UK
TimezoneEurope/London
Sunrise: 5:14 
Transit: 13:06 
Sunset: 20:58
sunny   (Daytime)   What's Visible Now?
All Constellations »  Sagittarius »  Deep Sky Objects » 

IC 4998 - Galaxy in Sagittarius

Below the horizon.  Rise: 0:38 | Tran: 1:14 | Set: 1:47
Alt: -74.93°   Az: 327.55°   Direction: North-North-West

IC 4998 is a Galaxy in the Sagittarius constellation. IC 4998 is situated south of the celestial equator and, as such, it is more easily visible from the southern hemisphere. Given its B magnitude of 14.02, IC 4998 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 4998 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 4998 -  Galaxy in Sagittarius star
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DSS2 image of IC 4998 in the Red band. The green region on the image is a representation of the major (1.57 arcmin) and minor (1.08 arcmin) axes of the object's apparent size.

Celestial Coordinates

Apparent

20h 23m 47s
-38° 13’ 42”
11h 19m 04s
07h 42m 52s

J2000

20h 22m 10s
-38° 18’ 29”

Finder Chart

The simplified sky charts below show the position of IC 4998 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 4998 -  Galaxy in Sagittarius star
Simplified finder chart for IC 4998 - Galaxy in Sagittarius.

Finder chart IC 4998 -  Galaxy in Sagittarius star
Simplified finder chart for IC 4998 - Galaxy in Sagittarius.

Photometric Information

The following table lists the magnitude of IC 4998 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).

14.02
11.35
10.81
10.42

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 4998.

23.39 mag/arcsec2

Apparent Size

The following table reports IC 4998 apparent angular size. The green area displayed on top of the DSS2 image of IC 4998 is a visual representation of it.
1.57 arcmin
1.08 arcmin
103°

Morphological Classification

IC 4998 - Galaxy in Sagittarius is classified as according to the Hubble and de Vaucouleurs galaxy morphological classification. The diagram below shows a visual representation of the position of IC 4998 - Galaxy in Sagittarius in the Hubble de Vaucouleurs sequence.

IC 4998 - Galaxy in Sagittarius
Visualization of the morphological classification of IC 4998 - Galaxy in Sagittarius, .
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 4998 - Galaxy in Sagittarius rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 128.2°
Max altitude: 0.3°
Azimuth: 231.8°