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NGC 1993.
NGC 1993 (còn được gọi là ESO 554-14) là một thiên hà dạng hạt đậu nằm trong chòm sao Thiên Thố. Nó được phát hiện bởi John Herschel vào ngày 6 tháng 2 năm 1835.[5] Nó cách Dải Ngân hà khoảng 143 triệu năm ánh sáng, cường độ biểu kiến của nó là 13,39[1] và kích thước của nó là 1,5 phút cung.[1]
Danh lục thiên văn |
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NGC | |
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PGC |
- PGC 17483
- PGC 17484
- PGC 17485
- PGC 17486
- PGC 17487
- PGC 17488
- PGC 17489
- PGC 17490
- PGC 17491
|
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|
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- Chòm sao Thiên Thố trong thiên văn học Trung Quốc
- Danh sách các sao trong chòm sao Thiên Thố
|
Sao | Bayer |
- α (Arneb)
- β (Nihal)
- γ
- δ
- ε
- ζ
- η
- θ
- ι
- κ
- λ
- μ
- ν
|
---|
Flamsteed | |
---|
Biến quang |
- R
- S
- T
- U
- RS
- RX
- RY
- TW
- TX
- UV
- YY
- YZ
- AC
- AF
- AK
|
---|
HR |
- 1604
- 1621
- 1628
- 1640
- 1645
- 1655
- 1661
- 1665
- 1694
- 1710
- 1723
- 1737
- 1747
- 1762
- 1771
- 1785
- 1792
- 1812
- 1823
- 1919
- 1944
- 1962
- 1965
- 1975
- 1980
- 2000
- 2021
- 2026
- 2036
- 2065
- 2086
- 2090
- 2129
- 2136
- 2140
- 2163
- 2180
- 2182
- 2183
- 2186
- 2192
- 2200
- 2206
|
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HD |
- 31527
- 32450
- 33095
- 33142
- 33162
- 33238
- 33283
- 34318
- 35137
|
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Khác | |
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|
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Thiên hà | |
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