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Observations date |
equipment |
grating |
0.28- |
1800 l/mm |
|
0.28- |
1800 l/mm |
|
0.28- |
1800 l/mm |
|
0.28- |
1800 l/mm |
|
0.28- |
2400 l/mm |
|
0.28- |
2400 l/mm |
|
0.28- |
2400 l/mm |
|
0.28- |
2400 l/mm |
|
0.28- |
2400 l/mm |
|
0.28- |
2400 l/mm |
|
0.28- |
2400 l/mm |
|
0.28- |
2400 l/mm |
|
0.28- |
2400 l/mm |
|
0.28- |
2400 l/mm |
|
0.28- |
2400 l/mm |
|
0.28- |
2400 l/mm |
|
0.28- |
2400 l/mm |
|
0.28- |
2400 l/mm |
|
0.28- |
2400 l/mm |
|
0.28- |
2400 l/mm |
Vulpecula -
HD 192685, also known as QR Vul or HR 7739, is a Be star 1,199 ly away in the Vulpecula constellation and is a blue eruptive main sequence dwarf star -