Crescent Moon.
초승달.

2021. 04. 14.

http://www.cometsky.com/astrophotos/crescent_moon_20210414_phone_web_new_bsyeom.jpg

Galaxy Note 8 smartphone camera.

Bum-Suk Yeom. 염범석.

Crescent Moon and Earthshine.

초승달과 지구조.

http://www.cometsky.com/astrophotos/earthshine_20210414_web_bsyeom.jpg

http://www.cometsky.com/astrophotos/earthshine_20210414_web_bw_bsyeom.jpg

Taken by Bum-Suk Yeom on April 14, 2021 UTC @ Iksan, South Korea. Details: 10:57 UTC (19:57 KST), APM Apo 304mm(12inch) refractor, ZWO ASI6200MC Pro camera, f/7.5, f=2280mm, 2 sec.

염범석. Bum-Suk Yeom.

Crescent Moon, Saturn, and Jupiter.

초승달, 토성, 목성의 만남.

Bum-Suk Yeom. 염범석.

Large photo:

http://cometsky.com/astrophotos/moon_jup_sat_20201217_med_ex_rot_plus_recent_bsyeom.jpg

http://cometsky.com/astrophotos/moon_jup_sat_20201217_med_rot_recent_bsyeom.jpg

http://cometsky.com/astrophotos/moon_jup_sat_20201217_med_ex_rot_recent_bsyeom.jpg

Taken by Bum-Suk Yeom on December 17, 2020 @ Iksan, South Korea.

Details: 08:58 UT (17:58 KST), 60mm refractor (Takahashi FS-60CB with Flattener, f=374mm, F6.2), EOS 5D Mark III camera, EM-200 mount, ISO 200, f/6.2, 0.4 sec. (Inserted image data: 18:32 KST, 150mm refractor, EOS 80D cameara, ISO 800, f/7.3, 1 sec.)

Crescent Moon, Saturn, and Jupiter.

초승달, 토성, 목성의 만남.

Bum-Suk Yeom. 염범석.

Large photo:

http://cometsky.com/astrophotos/moon_jup_sat_20201217_med_recent_bsyeom.jpg

http://cometsky.com/astrophotos/moon_jup_sat_20201217_med_ex_recent_bsyeom.jpg

Taken by Bum-Suk Yeom on December 17, 2020 @ Iksan, South Korea.

Details: 08:58 UT (17:58 KST), 60mm refractor (Takahashi FS-60CB with Flattener, f=374mm, F6.2), EOS 5D Mark III camera, EM-200 mount, ISO 200, f/6.2, 0.4 sec. (Inserted image data: 18:32 KST, 150mm refractor, EOS 80D cameara, ISO 800, f/7.3, 1 sec.)

Crescent Venus and Moon. 

by Bum-Suk Yeom

Did you know that Venus shows phases? Through a telescope, it can look like a tiny, featureless crescent moon. Why does the phase of Venus change? It’s because Venus orbits the sun on an orbit inside that of Earth’s. As a result, we sometimes see a crescent Venus. However, Venus' apparent angular size is about 30 times smaller than the Moon. The photo is a comparison of the crescent-shaped Venus and the Moon (not to scale). Perhaps if you take pictures of Venus and the crescent Moon in very small sizes, it will not be easy for ordinary people to distinguish them. The image is NOT to scale.

http://cometsky.com/astrophotos/20200513_crescent_venus_moon_bsyeom.jpg   

Venus taken by Bum-Suk Yeom  on May 13, 2020 UT @ Iksan, South Korea. APM Apo 12inch Refractor (f=2,280mm), ASI 224MC camera, 2.5x Barlow lens, ZWO ADC(Atmospheric Dispersion Corrector). UV-IR cut filter, 90sec movie (5,178 image stack).

Crescent Moon taken by Bum-Suk Yeom on December 09, 2010 UT @ Daejeon, South Korea. Zeiss 150mm Refractor (f=1,200mm), EOS 5D Mark III camera, ISO 400, f/8, 1/15 sec.

초승달 모양의 금성과 달.

염범석 (Bum-Suk Yeom)

금성의 위상(겉보기 모양)이 변한다는 것을 알고 있습니까? 금성은 망원경을 통해 아주 작고 특색이 없는 초승달처럼 볼 수 있습니다. 금성의 위상이 왜 변할까요? 금성은 지구의 궤도 내부에서 태양을 공전하기 때문입니다. 결과적으로 우리는 종종 초승달 모양의 금성을 볼 수 있습니다. 하지만, 금성의 겉보기 각크기는 달보다 약 30배나 더 작습니다. 사진은 초승달 모양의 금성과 달을 비교한 것입니다 (크기는 실제와 맞지 않음). 아마도 금성과 달을 매우 작은 크기로 사진을 촬영한다면 일반인들은 이들을 구별하기가 쉽지 않을 것입니다. 사진은 실제 겉보기 크기와 맞지 않습니다. 

Saturn, Crescent Moon, Venus, and Jupiter.  2019-11-29. 

토성, 초승달, 금성, 그리고 목성.  2019-11-29. 

Large photo :    
http://cometsky.com/astrophotos/sat_moon_ven_jup_20191129_bsyeom.jpg

Galaxy Note 8 smartphone camera.

갤럭시 노트 8 스마트폰 카메라.

Bum-Suk Yeom. 염범석.

Crescent Moon.
초승달.

http://cometsky.com/astrophotos/crescent_moon_20190507_galaxy_note_8_web_bsyeom.jpg

Galaxy Note 8 (갤럭시 노트 8).
Bum-Suk Yeom. 염범석.

Crescent Moon & Observatory.

초승달과 천문대.

http://cometsky.com/astrophotos/crescent_moon_obs_20190507_web_bsyeom.jpg

Galaxy Note 8 (갤럭시 노트 8).

Bum-Suk Yeom. 염범석.

8월의 천체 관측 대상들.

염범석(Bum-Suk Yeom).

http://cometsky.com/astrophotos/monthly_observing_objects_08_august_web_bsyeom.jpg

Large size:

http://cometsky.com/astrophotos/monthly_observing_objects_08_august_large_bsyeom.jpg

7월의 천체 관측 대상들.

염범석(Bum-Suk Yeom).

http://cometsky.com/astrophotos/monthly_observing_objects_07_july_bsyeom_final_web.jpg

Large size:

http://cometsky.com/astrophotos/monthly_observing_objects_07_july_bsyeom_final_medium.jpg