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Messier 44 (M44), Beehive Cluster, Praesepe 벌집 성단, 프레세페 성단 Messier 44 (M44), Beehive Cluster, Praesepe. M44, 벌집 성단, 프레세페 성단. 2026. 2. 18. 15:43 UTC (2. 19. 00:43 KST). http://cometsky.com/astrophotos/m44_260219_med_bsyeom.jpgTaken by Bum-Suk Yeom (염범석). 2026. 2. 18. 15:43 UTC, Celestron 8” Rowe-Ackermann Schmidt Astrograph (RASA 8, D=200mm, f=400mm, f/2), iOptron HAE43 Harmonic Mount, ZWO ASI533MC Pro Camera, Optolong L-Quad Enhance Filter, ZWO ASI22.. 2026. 2. 25.
Pleiades Cluster (M45) 플레이아데스 성단 Pleiades Cluster (M45), Seven Sisters. 플레이아데스 성단 (M45), 칠공주별, 묘성, 좀생이별. 2026. 2. 18. 13:24 UTC (2. 18. 22:24 KST). http://cometsky.com/astrophotos/m45_20260218_med_bsyeom.jpg http://cometsky.com/astrophotos/m45_20260218_med_crop_bsyeom.jpg http://cometsky.com/astrophotos/m45_20260218_med_crop_rot_bsyeom.jpg Taken by Bum-Suk Yeom (염범석). 2026. 2. 18. 13:24 UTC, Celestron 8” Rowe-Ackermann Schmi.. 2026. 2. 22.
Andromeda Galaxy (M31) 안드로메다 은하 (M31) Andromeda Galaxy (M31). 안드로메다 은하 (M31). 2025. 10. 23. 17:39 UTC (10. 24. 02:39 KST). http://cometsky.com/astrophotos/m31_251024_med_bsyeom.jpg https://cometsky.com/astrophotos/m31_251024_med_rot_bsyeom.jpg Taken by Bum-Suk Yeom (염범석). 2025. 10. 23. 17:39 UTC, Celestron 8” Rowe-Ackermann Schmidt Astrograph (RASA 8, D=200mm, f=400mm, f/2), iOptron HAE43 Harmonic Mount, ZWO ASI6200MC.. 2025. 10. 25.
Messier 11 (The Wild Duck Cluster) M11 (야생오리 성단) Messier 11 (The Wild Duck Cluster). M11 (야생오리 성단). 2025. 4. 10. 18:37 UT (4. 11. 03:37 KST). Total exposure time : 15sec x 100 = 25 min. https://cometsky.com/astrophotos/m11_20250410_bsyeom.jpgTaken by Bum-Suk Yeom (염범석). 2025. 4. 10. 18:37 UT, Celestron 8” Rowe-Ackermann Schmidt Astrograph (RASA 8, D=200mm, f=400mm, f/2), iOptron HAE43 Harmonic Mount, ZWO ASI533MC Pro Camera, Sightr.. 2025. 4. 21.
The Great Orion Nebula M42 오리온 대성운 M42 The Great Orion Nebula M42.   오리온 대성운 M42.   2025. 1. 25. 15:10 UT (1. 26. 00:10 KST).      https://cometsky.com/astrophotos/m42_20250126_bsyeom.jpgTaken by Bum-Suk Yeom (염범석).     엷은 구름이 계속 있었고, 구름이 몰려와서 총 노출 시간이 1시간밖에 안되네요. 2025. 1. 25. 15:10 UT, Takahashi TOA-150 (D=150mm, f=1100mm, f/7.3) refractor, Takahashi EM-400 Temma 2 Mount, ZWO ASI2600MC Duo Camera, ZWO ASI220MM Mini Guide camera, IDA.. 2025. 1. 28.
Mars, and Beehive Cluster (Praesepe, M44) 화성과 벌집 성단 (M44) Mars, and Beehive Cluster(Praesepe, M44). 화성과 벌집 성단(M44).​       Large photos:  https://cometsky.com/astrophotos/m44_mars_20241202_med_bsyeom.jpg https://cometsky.tistory.com/735353염범석. Bum-Suk Yeom.        ​ 구름의 영향으로 사진 화질이 좋지 않습니다. The photo quality is not good due to the clouds. Taken by Bum-Suk Yeom (http://www.cometsky.com) on December 1, 2024 UTC @ Jangsu, South Korea.        Details: 20:4.. 2024. 12. 3.
M13 Great Globular Cluster M13 구상 성단 M13 Great Globular Cluster.  M13 구상 성단.  2024. 4. 13. 19:18 UT (4. 14. 04:18 KST).     http://cometsky.com/astrophotos/m13_20240414_bsyeom.jpgTaken by Bum-Suk Yeom (염범석).    2024. 4. 13. 19:18 UT, Celestron 8” Rowe-Ackermann Schmidt Astrograph (RASA 8, D=200mm, f=400mm, f/2), iOptron HAE43 Harmonic Mount, ZWO ASI533MC Pro Camera, ZWO ASI120MM Mini Guide camera, Gain = 0, CMOS sensor temp. = -10°.. 2024. 6. 29.
M27 Dumbbell Nebula M27 아령 성운 M27 Dumbbell Nebula. M27 아령 성운.  2024. 6. 6. 17:05 UT (6. 7. 02:05 KST).   http://cometsky.com/astrophotos/m27_20240607_bsyeom.jpg http://cometsky.com/astrophotos/m27_20240607_sq_bsyeom.jpg Taken by Bum-Suk Yeom (염범석).    2024. 6. 6. 17:05 UT, Celestron 8” Rowe-Ackermann Schmidt Astrograph (RASA 8, D=200mm, f=400mm, f/2), iOptron HAE43 Harmonic Mount, ZWO ASI533MC Pro Camera, ZWO ASI220MM Mini G.. 2024. 6. 14.
Astrophotos taken with Seestar S50 씨스타 S50 스마트 망원경으로 촬영한 천체 사진들 Astrophotos taken with Seestar S50. 씨스타 S50 스마트 망원경으로 촬영한 천체 사진들. 2023. 10. 20. ~ 11. 26. http://cometsky.com/astrophotos/seestar_s50_ngc2237_231022_bsyeom.jpg http://cometsky.com/astrophotos/seestar_s50_b33_231107_bsyeom.jpg http://cometsky.com/astrophotos/seestar_s50_full_moon_231028_bsyeom.jpg http://cometsky.com/astrophotos/seestar_s50_sun_231125_bsyeom.jpg http://cometsky.com/astrophotos/se.. 2023. 12. 13.
B33, M15 (Seestar S50) 말머리성운(B33), M15 (씨스타 S50) B33, M15 (Seestar S50). 말머리성운(B33), M15 (씨스타 S50). http://cometsky.com/astrophotos/Seestar_S50_B33_231107_bsyeom.jpg http://cometsky.com/astrophotos/Seestar_S50_M15_231107_bsyeom.jpg Bortle scale 6. Iksan, South Korea, 전라북도교육청과학교육원. 말머리 성운(B33)과 발광 성운 IC 434, 씨스타 S50 + Comet BP 필터, 2023-11-07 23:15 KST, 60 x 10초 = 10분 (600초). 페가수스자리의 구상 성단 M15, 씨스타 S50 + Comet BP 필터, 2023-11-07 22:49 KST, 108 x .. 2023. 11. 9.
Coathanger Cluster (Brocchi's Cluster, Cr 399) 옷걸이 성단 (브로치 성단, Cr 399) Coathanger Cluster (Brocchi's Cluster, Cr 399) and NGC 6802. 옷걸이 성단 (브로치 성단, Cr 399)와 NGC 6802. 2023. 6. 18. 18:07 UT (6. 19. 03:07 KST). http://cometsky.com/astrophotos/cr399_20230619_med_bsyeom.jpg Taken by Bum-Suk Yeom (염범석). 2023. 6. 18. 18:07 UT, Sharpstar Askar FMA180 pro (D=40mm, f=180mm) Refractor, iOptron HAE43 Harmonic Mount, ZWO ASI533MC Pro Camera, ZWO ASI220MM Mini Guide camera, Gai.. 2023. 6. 24.
Great Orion Nebula (M42), Light pollution filter test M42, 광해 필터 테스트 Great Orion Nebula (M42), Light pollution filter test M42, 광해 필터 테스트 오리온대성운 (M42) 광해 필터 테스트. 3 min single shot. 3분 노출 사진 한장. 2020.10.25. 19:41 (UT). Quad BP II filter test in the city sky (Bortle scale 8). 3 min single shot. 304mm refractor + ASI6200MC Pro camera + Quad BP II filter, 3min single shot. No Dark, No Flat, No Bias. http://cometsky.com/astrophotos/m42_20201026_med_bsyeom.jpg 2020.10... 2020. 10. 26.

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