Seestar Official Group盖亚任务（Gaia）望远镜
你是否想过，我们身处的银河系究竟是怎样一幅模样？那些在夜空中闪烁的光点，它们的位置、距离和运动轨迹能否被精确丈量？欧洲航天局的盖亚（Gaia）任务，正以史无前例的精度为我们揭晓答案。这颗2013年12月发射的太空望远镜，如同一位执着的“宇宙测绘师”，在距离地球150万公里的第二拉格朗日点（L2）轨道上，用近十年时间编织出一张覆盖近20亿个天体的三维星网 。 盖亚的核心奥秘藏在它的“眼睛”里。这台由两台望远镜组成的精密仪器，通过独特的光学设计将星光折叠反射35米，最终聚焦到由106块CCD芯片构成的“超级相机”上——这是人类送入太空的最大数字探测器，像素数量达到惊人的10亿级，相当于普通智能手机摄像头的100倍。当盖亚每6小时缓缓旋转一周时，它会反复观测同一颗恒星达70次之多，凭借视差原理（类似于人眼观察物体的立体感），连距离地球数千光年的恒星位置变化都能捕捉到——这种精度相当 于从伦敦看巴黎街头的一枚硬币移动了几毫米 。更神奇的是，盖亚还能通过光谱分析，解码恒星的温度、化学成分甚至年龄，让每颗星星都拥有一张包含位置、运动和“生命体征”的“身份证”。 这些看似枯燥的数据，正在改写我们对银河系的认知。通过盖亚发布的第三批数据（DR3），天文学家发现银河系的“厚盘”结构早在130亿年前就开始形成，比预期早了20亿年，几乎与宇宙大爆炸后的首批恒星同步。那些曾被认为孤立存在的恒星，在盖亚的星图中显露出隐藏的“家族关系”：超过200条星流（恒星被引力撕碎后形成的链式结构）揭示了银河系吞噬小星系的“成长史”，而名为“盖亚香肠”的巨型星流更证实，我们的星系在100亿年前曾与另一个星系发生过剧烈碰撞。2025年的最新发现更令人惊叹：盖亚首次通过恒星“摆动”直接探测到系外行星Gaia-4b和褐矮星Gaia-5b，这两个质量分别为木星12倍和21倍的天体，正围绕着低质量恒星运行，挑战着现有的行星形成理论 。 在太阳系内，盖亚同样展现着“全能”实力。它不仅精确测定了近地小行星的轨道，为地球防御提供关键数据，还意外发现了白矮星冷却固化的证据——这些恒星“尸体”在死亡数十亿年后，最终会变成固态的晶态球体。甚至连恒星表面的微小振动（“星震”）都被盖亚捕捉到，这种原本用于地震学的研究方法，如今成为解析恒星内部结构的新工具 。 从绘制星图到探索生命，盖亚的使命远未结束。随着数据不断积累，它将帮助我们解开暗物质分布之谜，追踪银河系的演化轨迹，甚至为寻找外星文明提供线索。 盖亚任务（Gaia）
Seestar Official GroupMy s30 can't overlay pictures.？
As shown in the figure, my s30 can't superimpose pictures after using the equatorial mode, which leads to discarding one photo after taking one.As a result, after two hours of shooting, none of the photos were superimposed successfully, and nothing blocked the stars, and they were all taken normally before. What's the problem?
Seestar Official GroupPost-processing photos in mobile (RAW)?
Greetings! I would like to inquire about the most suitable application for photo editing exclusively on a mobile phone, and also how to export images from the Seestar S50 to a phone in raw format for use with Lightroom Mobile or a similar application. I currently do not have access to a personal computer, which is why I am seeking the best possible solution for my mobile device. Thank you for your assistance.
Seestar Official Group北落师门的背后橙黄色天体？
今晚观测，在赤道J2000标注的-29度35分25秒，22h57m40s位置有个黄色天体，我知道在这个方向上有亿万颗恒星，但因为北落师门的星际尘埃我看不到了，那橙黄色的是什么？
Seestar Official GroupMilk box view finder of Seestar S50
Locate Moon/Sun/land object is always a pain of Seestar S50 users because S50 doesn't have view finder or wide angle camera like s30. So I made a view finder with very simple materials: one milk box plus one small mirror. Like the pictures show, I suppose you can easily understand its structure and can make a copy by yourself. It didn't accurate but it need not, it just a guide to help you generally place the Moon or other objects in the center of the vision, then you can use Seestar app for next adjustment. But it may not work for the Sun because it is too strong. You can find my Lego Solar finder for that or combine with it. Enjoy and clear sky!
Seestar Official GroupAz vs EQ mode - Not convinced?
M31- Below you can find 2 raw images of Az(10s) and EQ(30s) modes and the AIdenoise version of them. The difference is between them is amazing. Specially if you consider the time on each. Az got far superior results with less time. Polar alignment was under 0.5 on both axis. What is wrong here? This location is the best I can usually go. Low Bortle and 360° of almost clear view. I have some goals for tonight, all North oriented, and I don't know if I should go back to Az or try again EQ on 20s.... Ideas?#Az VS EQ#
Seestar Official GroupDoes anybody know and use iOS-App AstroEdit or StarEdit? ?
I found this two Apps and StarEdit works great for Starex and backround editing when you have not enough time or technic-understanding for the great Siril, PixInsight, Photoshop etc. You can control Seestar S50 with one iPhone and edit the pictures on an other iPhone while waiting for the next. So, does anyone know this Apps, because I have trouble with AstroEdit...
Seestar Official GroupHelp advice needed for first PC build
Hi all after some advice for my first PC build- Looking at using pixinsight and siril for processing- what sort of build should I be looking at and what could you recommend parts wise- this build will just be used for stacking processing - so no gaming and also looking at future proofing it thank you
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Question List
1望远镜的目镜选择？
2如何在城市里（六级区）出摊打野拍深空？而且新购入的设备总价不超过一万？
3Pixinsight - is it worth it ? How is the learning curve ?
4Sun Guardian Badge - best tips?
5Help with the Moon Phase Tracker?
6What are y’all’s favorite deep sky objects?
7Sirius Warrior - new badge / new questions !?
8Who’s going to AstroCon2025 at Bryce Canyon?
Thought List
1Lego made solar finder
22024 YR4：可能撞击地球的小行星 A Potential Earth Impact
3关于超级蓝月亮，全面的问题解答(Super Blue Moons: Your Questions Answered)
4Sirius Warrior Acquisition Group (SWAG)
5关于月食的一切，类型、图像以及发生的频率。
6Comparison of S30 v S50 Rosette Nebula
7观测 C/2023 A3（紫金山-阿特拉斯 Tsuchinshan-ATLAS）彗星
8Nice garbage container always polar aligned containers on wheels Pull and close up.
9What is your motivation to do astrophotography?