| Double Stars |
amateur
astronomy |
| The images below are in no special order. Unless otherwise stated, all images were captured using a Celestron NexStar 11 GPS with an Olympus C4000Z digital camera at full zoom using afocal projection with a Tele Vue Radian digital camera adapter and a 10mm Tele Vue Radian. |
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32 Eridani
In the Eridanus constellation. Difference in magnitude is 1.5. Separation 6.8 arc-seconds. Taken on October 7, 2003 at 1:15am EST using a 14mm Radian. A single exposure at F2.8 - 1/2 second processed for levels in PhotoShop 7. The seeing was 5/10 Pickering, with low frequency undulations, and the transparency was above average at 4/6. Image reduced 50%. My first picture ever of a double star. |
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Eta Cassiopeiae
In the Cassiopeia constellation. A pretty "purple" and gold double with component magnitudes: A-3.44 and B-7.51. Difference in magnitude is 4.07. Separation 11.6 arc-seconds. Taken on October 15, 2003 at 10:15pm EST. A single exposure at F2.8 - 8 seconds at ISO 200 with noise reduction. Processed for levels in PhotoShop 7. The seeing was 4/10 Pickering, with high frequency undulations, and the transparency was perfect at 6/6. Image reduced 30%. |
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Sigma Cassiopeiae
In the Cassiopeia constellation. A blue and green double with component magnitudes: A-5.00 and B-7.00. Difference in magnitude is 2.00. Separation 3.1 arc-seconds. Taken on October 16, 2003 at 1:25am EST. A single exposure at F2.8 - 4 seconds at ISO 400 with noise reduction. Processed for levels in PhotoShop 7. The seeing was 4/10 Pickering, with high frequency undulations, and the transparency was perfect at 6/6. Image reduced 20%. |
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Epsilon Persei
In the constellation Perseus. A blue white and blue double with component magnitudes: A-2.99 and B-7.50. Difference in magnitude is 4.51. Separation 8.8 arc-seconds. Taken on October 16, 2003 at 12:25am EST. A single exposure at F2.8 - 3 seconds at ISO 400 with noise reduction. Processed for levels in PhotoShop 7. The seeing was 4/10 Pickering, with high frequency undulations, and the transparency was perfect at 6/6. Image is actual size cropped to 300x300. |
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Struve 495
In the constellation Taurus. A yellow and yellow double with component magnitudes: A-6.20 and B-8.30. Difference in magnitude is 2.1. Separation 3.8 arc-seconds. Taken on October 16, 2003 at 12:40am EST. A single exposure at F2.8 - 8 seconds at ISO 400 with noise reduction. Processed for levels in PhotoShop 7. The seeing was 4/10 Pickering, with high frequency undulations, and the transparency was perfect at 6/6. Image reduced 30%. |
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107 Aquarii
In the constellation Aquarius. A blue and blue double with component magnitudes: A-5.70 and B-6.50. Difference in magnitude is .80. Separation 6.8 arc-seconds. Taken on October 17, 2003 at 11:55pm EST. A single exposure at F2.8 - 4 seconds at ISO 400 with noise reduction. Processed for levels in PhotoShop 7. The seeing was 5/10 Pickering, with high frequency undulations, and the transparency was 5/6. Image reduced 50%. |
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Zeta Piscium
In the constellation Pisces. A blue and yellow double with component magnitudes: A-5.23 and B-6.26. Difference in magnitude is 1.03. Separation 22.9 arc-seconds. Taken on October 17, 2003 at 11:02pm EST. A single exposure at F2.8 - 4 seconds at ISO 400 with noise reduction. Processed for levels in PhotoShop 7. The seeing was 5/10 Pickering, with high frequency undulations, and the transparency was 5/6. Image reduced 70%. |
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Almach
In the constellation Andromeda. A nice yellow and blue double with component magnitudes: A-2.26 and B-4.84. Difference in magnitude is 2.58. Separation 9.6 arc-seconds. Taken on October 18, 2003 at 12:02am EST. A single exposure at F2.8 - 2 seconds at ISO 400 with noise reduction. Processed for levels in PhotoShop 7. The seeing was 5/10 Pickering, with high frequency undulations, and the transparency was 5/6. Image reduced 50%. |
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Albireo
In the constellation Cygnus. A nice gold and blue double with component magnitudes: A-3.08 and B-5.08. Difference in magnitude is 2.00. Separation 34.7 arc-seconds. Taken on October 18, 2003 at 12:20am EST. A single exposure at F2.8 - 4 seconds at ISO 400 with noise reduction. Processed for levels in PhotoShop 7. The seeing was 5/10 Pickering, with high frequency undulations, and the transparency was 5/6. Image reduced 70%. |
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17 Cygni
In the constellation Cygnus. A very nice yellow and gold/gold triple with component magnitudes: A-4.98, B-8.54 and C-9.00. Separations: A-B 26.3, A-C 115.7 arc-seconds. Taken on October 18, 2003 at 12:30am EST with a 14mm Radian. A single exposure at F2.8 - 16 seconds at ISO 400 with noise reduction. Processed for levels in PhotoShop 7. The seeing was 5/10 Pickering, with high frequency undulations, and the transparency was 5/6. Image reduced 80%. |
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Tau 1 Aquarii
In the constellation Aquarius. Missing information. Taken on October 18, 2003 at 12:30am EST. A single exposure at F2.8 - 16 seconds at ISO 400 with noise reduction. Processed for levels in PhotoShop 7. The seeing was 5/10 Pickering, with high frequency undulations, and the transparency was 5/6. Image reduced 80%.
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Rigel - beta Orionis
In the constellation Orion. A very bright white and blue double with component magnitudes: A-0.18, B-6.68. Separation: 9.5 arc-seconds. Taken on December 15, 2003 at 11:30pm EST with a 14mm Radian. A single exposure at F2.8 - 1/4 second at ISO 200. Processed for levels in PhotoShop 7. The seeing was 4/10 Pickering, with high frequency undulations, and the transparency was 6/6. Image reduced 80%. |
