Delta Telescopii

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The Bayer designation Delta Telescopii (δ Tel / δ Telescopii) is shared by two stars, δ¹ Telescopii and δ² Telescopii, in the constellation Telescopium. They are separated by 0.16° on the sky.


[edit] δ¹ Telescopii

δ¹ Telescopii
Observation data
Equinox J2000.0
Constellation Telescopium
Right ascension 18h 31m 45.4s
Declination −45° 54' 54"
Apparent magnitude (V) +4.92
Distance 800 ± 150 ly
(240 ± 45 pc)
Spectral type B6IV
Other designations
HR 6934, HD 170465,
CD-45 12550, HIP 90830,
SAO 229092, GC 25269

Delta-1 Telescopii is a blue-white B-type subgiant with an apparent magnitude of +4.92. It is approximately 800 light years from Earth.


[edit] δ² Telescopii

δ² Telescopii
Observation data
Equinox J2000.0
Constellation Telescopium
Right ascension 18h 32m 02.0s
Declination −45° 45' 26"
Apparent magnitude (V) +5.07
Distance 1100 ± 300 ly
(340 ± 90 pc)
Spectral type B3III
Other designations
HR 6938,
HD 170523, CD-45 12556,
HIP 90853, SAO 229095,
GC 25273

Delta-2 Telescopii is a blue-white B-type giant with an apparent magnitude of +5.07. It is approximately 1100 light years from Earth.