Upsilon4 Eridani
DSS image of Upsilon4 Eridani
Overlaid DSS image of Upsilon4 Eridani, 60' x 60' with north at top and west to the right

Aladin viewer for the region around Upsilon4 Eridani
υ4 Eri, 41 Eridani, 41 Eri
CD-34 1614, HD 27376, HR 1347, WDS J04179-3348A, SAO 194902, GSC 07040-01534, HIP 20042, Gaia DR3 4870527586937201408

Type  Star
Magnitude  3.56
Right Ascension  4h 17' 53.7"  (2000)
Declination  33° 47' 54" S
Constellation  Eridanus
Classification  B9V
Observing Notes

Andrew Cooper
Oct 14, 2023    Waikoloa, HI (map)
20cm f/6 Newtonian, Cave Astrola @ 76x
Seeing: 6 Transparency: 7 Moon: 0%

Brilliant white, no companion noted

SkiSafari lists a companion, but not a magnitude. WDS lists the primary as a spectroscopic binary Aa and Ab both at mag 4.6, there is apparently also B a 9.9 magnitude 5.5" companion, and C and 11.8 magnitude 49" companion, neither of these show in the survey imagery or have any data in SIMBAD beyond the WDS listing

Andrew Cooper
Nov 27, 2021    Waikoloa, HI (map)
20cm f/6 Newtonian, Cave Astrola @ 76x
Seeing: 7 Transparency: 6 Moon: 0%

Brilliant blue-white, no companion noted, in a notable 20' circlet with three 7th magnitude stars to the south
Other Data Sources for Upsilon4 Eridani
Nearby objects for Upsilon4 Eridani
5 objects found within 120'
Beemim IC 2040 IC 2048
NGC 1531 NGC 1532
Credits...

Drawings, descriptions, and CCD photos are copyright Andrew Cooper unless otherwise noted, no usage without permission.

A complete list of credits and sources can be found on the about page

Upsilon4 Eridani