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Summer constellations 여름철의 주요 별자리 Summer constellations. 여름철의 주요 별자리. https://cometsky.com/astronews/summer_skymap_01_large_bsyeom.jpghttps://cometsky.com/astronews/summer_skymap_02_large_bsyeom.jpg 염범석. Bum-Suk Yeom. 2025. 8. 6.
Lunar X and Lunar V 루나 X와 루나 V Lunar X and Lunar V.루나 X와 V.Large photo: https://cometsky.com/astrophotos/lunar_x_20250801_01_bsyeom.jpg https://cometsky.com/astrophotos/lunar_x_20250801_02_bsyeom.jpg 150mm TOA-150 refractor, Galaxy S25 Ultra smartphone. 150mm 토아-150 굴절 망원경, 갤럭시 S25 울트라 스마트폰.When the moon’s terminator – or line between light and dark on the moon – is located in just the right place, you can see a lett.. 2025. 8. 4.
Celestial objects to observe in August 2025 2025년 8월의 천체 관측 대상들 Celestial objects to observe in August 2025. 2025년 8월의 천체 관측 대상들. Large photo: https://cometsky.com/astronews/2025_08_aug_skyobject_large_bsyeom.jpgBum-Suk Yeom. 염범석. 2025. 8. 4.
2025년 페르세우스자리 유성우 (Perseids) 예측 2025 Perseids prediction 2025년 페르세우스자리 유성우 (Perseids) 예측. 2025 Perseids prediction. https://cometsky.com/astronews/2025_perseids_forecast_bsyeom.jpgcf. 2021 Perseids photo. 2021년 페르세우스자리 유성우 사진. https://cometsky.tistory.com/1267http://cometsky.com/astrophotos/2021_perseids_20210813_med_rot_bsyeom.jpg - 활동 기간 : 7월 17일 ~ 8월 29일. - 올해 극대기 : 8월 12일 22:15 (한국시간, IMO 자료 기준). 8월 13일 04:47 (한국.. 2025. 7. 28.
Celestial objects to observe in July 2025 2025년 7월의 천체 관측 대상들 Celestial objects to observe in July 2025. 2025년 7월의 천체 관측 대상들. Large photo: https://cometsky.com/astronews/2025_07_july_skyobject_large_bsyeom.jpgBum-Suk Yeom. 염범석. 2025. 7. 7.
Nightsky brightness measured with SQM-L in the Govi Desert 고비 사막에서 SQM-L로 측정한 밤하늘 밝기 Night sky brightness measured with SQM-L (Sky Quality Meter with Lens) equipment in the Govi Desert. Because the night sky was cloudy, the measurement was darker than the actual brightness, 22.14 mag/arcsec^2, but when the weather was clear a few days later, the measurement was approximately 21.7 mag/arcsec^2. I think this value is probably correct. Based on the Bottle Scale, Bottle Class 1 corr.. 2025. 7. 3.
V462 Lup, Naked-eye Nova in the constellation Lupus V462 Lup (AT 2025nlr, ASASSN-25cm, and N Lup 2025). Naked-eye Nova in Lupus. 직각자자리에 나타난 맨눈으로 관측 가능한 신성, V462 Lup. 국내에서는 고도가 낮아서 맨눈으로 관측은 어렵고 쌍안경을 사용해야 볼 수 있을 것 같습니다. 사진은 예전에 찍은 것이라 신성이 나타나 있지 않습니다. 현재 신성의 밝기는 5.5등급입니다. Large photo: https://cometsky.com/astronews/astronews_20250619_bsyeom.jpgBum-Suk Yeom. 염범석. 2025. 6. 19.
Celestial objects to observe in June 2025 2025년 6월의 천체 관측 대상들 Celestial objects to observe in June 2025. 2025년 6월의 천체 관측 대상들. Large photo: https://cometsky.com/astronews/2025_06_june_skyobject_large_bsyeom.jpgBum-Suk Yeom. 염범석. 2025. 6. 2.
Summer constellations 여름철의 주요 별자리 Summer constellations. 여름철의 주요 별자리. https://cometsky.com/astronews/summer_skymap_01_large_bsyeom.jpg https://cometsky.com/astronews/summer_skymap_02_large_bsyeom.jpg 염범석. Bum-Suk Yeom. 2025. 6. 1.
Naked-Eye Giant Sunspot Returns 맨눈으로 관측 가능한 거대한 태양 흑점의 귀환 Naked-Eye Giant Sunspot Returns (using Solar Glasses). (태양 안경을 사용하여) 맨눈으로 관측 가능한 거대한 태양 흑점의 귀환. Large photo: https://cometsky.com/astronews/sun_20250526_sdo_bsyeom.jpgThe biggest sunspot of 2025 is coming back. After a two week transit around the farside of the sun, sunspot 4079 returns to transit the solar disk. The sunspot is currently five times the size of Earth. (Caution) .. 2025. 5. 26.
Big Dipper 북두칠성 Big Dipper. 북두칠성. Large photos: https://cometsky.com/astrophotos/big_dipper_20250323_large_bsyeom.jpghttps://cometsky.com/astrophotos/big_dipper_20250323_large_ex_bsyeom.jpghttps://cometsky.com/astrophotos/big_dipper_20250323_web_bsyeom.jpghttps://cometsky.com/astrophotos/big_dipper_20250323_web_ex_bsyeom.jpg 염범석. Bum-Suk Yeom. Taken by Bum-Suk Yeom ( https://www.cometsky.com ) on Mar.. 2025. 5. 7.
Sagittarius, Scorpius, and the Summer Milky Way 궁수자리, 전갈자리, 그리고 여름철 은하수 Sagittarius, Scorpius, and the Summer Milky Way. 궁수자리, 전갈자리, 그리고 여름철 은하수. Large photos: https://cometsky.com/astrophotos/sgr_sco_20250501_large_new_bsyeom.jpghttps://cometsky.com/astrophotos/sgr_sco_20250501_web_new_bsyeom.jpg염범석. Bum-Suk Yeom. ​ Taken by Bum-Suk Yeom ( https://www.cometsky.com ) on April 30, 2025 UTC @ Jangsu, South Korea. Details: 18:37 UTC, Sigma Art 40mm F1.. 2025. 5. 6.

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