# How to Buy a Memorial Star, Step by Step: From Their Moment to the PDF

> The whole path, without gaps: enter their date, time and place; preview the real HYG star for free; name it and pay $19.99; download the PDF; then come back anytime to see where the star is now — or check it yourself in Stellarium.

You do not pick a star from a catalogue. You enter the moment and place of passing; the site computes the zenith and the nearest real HYG star, shows it free, and only after you name it and pay $19.99 does it generate the star page and PDF certificate. The certificate carries the catalog ID and J2000 coordinates. Later, your star page’s Sky Tracker shows the star’s current altitude and direction from your location; the same coordinates work in Stellarium or any sky app.

URL: https://astarnamed.com/guides/how-to-buy-a-memorial-star · Category: getting-started · Published: 2026-11-09

## The full path at a glance

- **1 · Input** — The date, time and place of passing; if the time is unknown, the date alone is allowed
- **2 · Preview** — See the real HYG star nearest the zenith, free, before paying
- **3 · Name** — Choose the name and one line of dedication; one tier, $19.99
- **4 · Pay & download** — The star page, 3D sky and A4-landscape PDF are generated immediately
- **5 · Return to now** — Open Sky Tracker, choose Now and Use my location, and see its current altitude and direction
- **6 · Verify outside** — Enter the certificate’s RA/Dec in Stellarium or any sky app

## Before you start: three things

One thing to get straight first: there is no “official naming right” here. The IAU is the only body that officially names celestial objects and recognizes no commercial naming. What you buy is a real, checkable star plus a memorial delivery; the name is commemorative, and that line is printed on the certificate.

- **The name for the certificate** — Use the name you actually called them — a nickname is fine; no legal name is required.
- **Date, time and place** — The more exact the time, the closer the star sits to that moment. If you only know the date, the site uses local sunset and says so on the certificate.
- **A one-time payment method** — One tier, $19.99, no subscription; checkout is handled by Waffo Pancake as Merchant of Record.

## Step 1 — Enter the moment and the place

Both inputs matter: at the same clock time, different longitudes put a different part of the sky overhead; at the same place, each hour shifts the zenith about 15°. Enter what you actually know, and do not change the date to make it “nicer.”

If you only know the date, choose the local sunset option; the site computes the true sunset for that day and place and records that choice on the certificate. If you find the exact time later, recompute: the same day and place with a different time can produce a different star, closer to the moment.

## Step 2 — Preview the real star before paying

The preview is free. You see the star’s catalog ID, J2000 coordinates, distance and its place in the 3D sky before deciding. It does not reserve the star and does not ask for payment.

This is what “choosing the star” means here: not picking a good-looking one from a list, but seeing the star computed from that moment and deciding whether it is the one you want to keep. If it does not feel right, adjust the time or place and recompute before paying.

## Step 3 — Name it and write one line

The name goes on the certificate and star page; use the name you actually used for them. The dedication is one line and is optional — “we will always miss you” works, and so does a private joke only the two of you understood. The certificate prints only what you enter.

## Step 4 — Pay and download the PDF

Once payment clears, the star page, the 3D sky of that moment and the certificate PDF are generated immediately. Nothing ships, and there is no package to wait for. The certificate is an A4-landscape PDF for you to print and frame.

The certificate carries the catalog ID (HIP/Gaia), J2000 right ascension and declination, distance, spectral type, certificate number and a QR code. You can re-download it anytime from My Memorial Stars; it has no expiry, and J2000 coordinates barely shift over centuries.

## Step 5 — Come back anytime to see where the star is now

Open My Memorial Stars, go to this star’s detail page and open Sky Tracker — or scan the QR code on the certificate to the star page and open it from there. Choose the Now preset, then Use my location; if you would rather not share location, enter a city, date and time manually.

The tracker draws the current 3D sky near the horizon and shows the star’s altitude and azimuth right now, plus upcoming visible windows. The star’s J2000 coordinates have not changed; Earth’s rotation and your location have. That is why the same night looks different from another city.

If the star is below the horizon right now, the tracker says so instead of leaving you guessing at the sky. Weather, light pollution and magnitude affect whether you can see it: some stars are naked-eye, some need binoculars or a long exposure, and the certificate and star page state which kind this one is.

## Step 6 — Check the same star in Stellarium or another app

The RA/Dec on the certificate are J2000 coordinates. Open Stellarium (desktop or stellarium-web.org), type a format like “05h55m10.3s +07d24m25s” into the search box and press Enter; the view centres on the star. On mobile, Stellarium Mobile, SkySafari and similar apps usually accept coordinates or catalog IDs.

Make sure the epoch is set to J2000. If the coordinates match, you are not taking our word for it; you are checking it against astronomy itself. The tracker answers “where is it from where I am now”; Stellarium answers “does this star exist at these coordinates” — two questions, two tools.

## What you get — and what you do not

- **You get** — A dedicated star page, the 3D sky and Sky Tracker, a memorial space private by default, and a PDF certificate you can re-download anytime.
- **You do not get** — An official naming right, ownership of the star, a physical package, or a promise that it will be naked-eye visible. The IAU recognizes no commercial naming; some stars need binoculars or a telescope.

## If you are buying for someone else

Ask for the name, date, time and place; do not invent a “nicer” date on their behalf. After payment, send them the star page link or the PDF; digital delivery needs no shipping and gives them nothing extra to look after. The memorial space is private by default, and sharing it is their choice.

## FAQ

**How long does the whole thing take?**

With the date, time and place ready, the preview is immediate; after payment the star page and PDF are generated at once, with no shipping. The only real delay is usually finding the exact time of passing.

**Can I buy it if I do not know the exact time?**

Yes. Enter the date alone; the site uses the local sunset of that day and place and states the approximation on the certificate. If you find the time later, recompute: the same day and place with a different time can yield a different star, closer to that moment.

**Can I download the PDF again?**

Yes. Re-download it anytime from My Memorial Stars after payment; the certificate has no expiry and does not stop working when you change devices.

**Can I see the star tonight?**

It depends on magnitude, season, location and weather. Open Sky Tracker from the star page, choose Now + Use my location, and it gives the current altitude/azimuth and visible windows; if the star is below the horizon, it says so. Fainter stars need binoculars or a long exposure.

**Is the naming official?**

No. The IAU is the only body that officially names celestial objects and recognizes no commercial naming. What is real is the star and its coordinates; the name is commemorative, and the certificate says so plainly.

**Can I pick a specific star from a list?**

No — that is not how this works. The star is computed from the moment and place of passing, not picked from a catalogue; the same inputs always produce the same star. The free preview lets you see that computed star before deciding whether to keep it.

**Can I find it in Stellarium?**

Yes. Enter the certificate’s RA/Dec (J2000) in the search box in a format like “05h55m10.3s +07d24m25s”, or try the catalog ID; make sure the epoch is J2000. If the coordinates match, the star really is there.

**Can I buy this for a pet?**

Yes, the flow is the same: the pet’s name and the date, time and place they passed fix the real star nearest the zenith at that moment. Pet certificates carry a separate rainbow-bridge arch design; start at /memorial-for-pets.

**Start with the Free Preview ✦** — https://astarnamed.com/find

> See how a memorial star works — free preview → https://astarnamed.com/memorial-star

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# 纪念星怎么买:从确定那颗星到付费下载 PDF 的完整步骤

> 把流程一次说清:输入离世的日期、时间与地点;免费预览 HYG 真实星;命名并支付 $19.99;下载 PDF;之后随时回站看它此刻在哪,或用 Stellarium 自己核对。

你不是从目录里挑一颗星,而是输入离世的时刻与地点,由天顶计算确定 HYG 真实星表里的那一颗。免费预览满意后,命名并支付 $19.99,系统即时生成星页与 PDF 证书;证书上有星表编号与 J2000 坐标。之后打开星页的 Sky Tracker,用「现在 + 我的位置」就能看到它此刻的高度与方位;同一组坐标也能在 Stellarium 等星图软件里独立核对。

## 整条路径,一眼看完

- **1 · 输入** — 离世的日期、时间与地点;时间不确定可只用日期
- **2 · 预览** — 免费看到那一刻天顶附近的真实 HYG 星,不付款
- **3 · 命名** — 写下证书上的名字与一句题献;单档 $19.99
- **4 · 付款与下载** — 即时生成星页、3D 星空与 A4 横向 PDF 证书
- **5 · 回站看现在** — 打开 Sky Tracker,选「现在」与「我的位置」,看当前高度与方位
- **6 · 外部核对** — 把证书上的 RA/Dec 输进 Stellarium 或任意星图 App

## 开始之前:只需要三样东西

先把一件容易误会的事说清:这里没有「官方命名权」。IAU 是唯一有权正式命名天体的机构,不承认任何商业命名。你买到的是一颗真实、可核对的星,加上一份纪念交付;名字是纪念性的,这句话印在证书上。

- **证书上的名字** — 平时怎么叫 TA 就怎么写,小名、昵称都可以;不需要法定姓名。
- **日期、时间与地点** — 时间越准确,星越贴近那一刻。只记得日期也能做:系统用当地日落计算,并在证书上写明用了近似。
- **一次性付款方式** — 单档 $19.99,没有订阅;付款由 Waffo Pancake 作为 Merchant of Record 处理。

## 第一步 · 输入离世的时刻与地点

地点和时间缺一不可:同一钟点,不同经度的天顶不同;同一地点,时间每差一小时,天顶沿天空转约 15°。所以先把已知的信息填准,不用为了「好看」改日期。

如果只知道日期,选「用当地日落」;系统会计算那一天、那个地点真实的日落,并把它写进证书。以后找到确切时间,可以重算——同一天、同一地点,换一个时间,可能会得到另一颗更贴近那一刻的星。

## 第二步 · 免费预览那颗真实的星

预览不收费。你会看到这颗星的星表编号、J2000 坐标、距离与它在 3D 夜空里的位置;先看,再决定。预览不会替你占住星位,也不要求你付款。

这大概就是「选星」在这里的含义:不是从列表里挑一颗好看的,而是看着由那一刻算出来的星,判断它是不是你想留下的那一颗。不满意就改时间或地点重算,不要带着疑虑付款。

## 第三步 · 命名,并写下一句话

名字会印在证书与星页上;可以是你平时叫 TA 的那个名字。题献只有一行,写不写都行——写「永远想念你」可以,写一个只有你们懂的梗也可以。证书只印你填的内容。

## 第四步 · 付款,下载 PDF

付款确认后,星页、那一刻的 3D 星空与证书 PDF 即时生成;没有物流,也没有需要等待的实体包裹。证书是 A4 横向 PDF,自己打印、装框即可。

证书上能核对的内容包括:星表编号(HIP/Gaia)、J2000 赤经赤纬、距离、光谱型、证书编号与二维码。之后随时可以从「我的纪念星」重新下载;证书没有有效期,坐标按 J2000 记录,几百年内几乎不变。

## 第五步 · 随时回站,看它此刻在哪

打开「我的纪念星」,进入这颗星的详情页,再打开 Sky Tracker;也可以扫证书上的二维码到星页,从那里进入。选「现在」预设,再点「使用我的位置」;如果不想开定位,就手动输入城市、日期与时间。

Tracker 会画出当前地平线附近的 3D 天空,并给出这颗星此刻的高度角与方位角,以及未来可见窗口。星的 J2000 坐标没有变,变的是地球自转和你所在的位置;所以同一个晚上,不同城市看到的方向会不同。

如果它此刻在地平线以下,Tracker 会直接告诉你,不用对着天空猜。天气、光害和星等会影响能不能看见:有些星肉眼可见,有些需要双筒或长曝光照片,证书与星页会写明这一颗的情况。

## 第六步 · 用 Stellarium 或其他 App 独立核对

证书上的 RA/Dec 是 J2000 坐标。打开 Stellarium(桌面版或 stellarium-web.org),在搜索框输入类似「05h55m10.3s +07d24m25s」的格式,回车,视图会居中到这颗星;手机上的 Stellarium Mobile、SkySafari 等多数也支持按坐标或星表编号检索。

核对时确认历元是 J2000。如果坐标对得上,你就不是在相信我们的说法,而是在用天文本身验证它。Tracker 是「现在从你所在位置看」,Stellarium 是「用坐标确认这颗星存在」——两个问题,两个工具。

## 你会得到什么,不会得到什么

- **会得到** — 专属星页、3D 星空与 Sky Tracker、默认私密的纪念空间、可随时重新下载的 PDF 证书。
- **不会得到** — 官方命名权、恒星所有权、实物包裹,或「一定肉眼可见」的保证。IAU 不承认任何商业命名;有些星需要双筒或望远镜。

## 如果是买给别人

先问清楚名字、日期、时间与地点,不要替对方猜一个「好看」的日期。付款后把星页链接或证书 PDF 发给对方;数字交付不用等物流,也不会让对方多一件需要照看的东西。纪念页默认私密,是否分享由对方决定。

## FAQ

**整个流程要多久?**

有日期、时间与地点的话,预览是即时的;付款确认后星页与 PDF 立即生成,没有物流。真正花时间的通常只有一件事:找到准确的离世时间。

**不知道确切时间,还能买吗?**

可以。只填日期,系统用那一天、那个地点的当地日落计算,并在证书上写明用了近似。以后找到时间可以重算;同一天同一地点,换一个时间可能得到另一颗更贴近那一刻的星。

**PDF 证书可以再下载吗?**

可以。付款后随时从「我的纪念星」重新下载;证书没有有效期,也不会因为换设备而失效。

**今晚能看到这颗星吗?**

取决于星等、季节、地点与天气。打开星页的 Sky Tracker,选「现在 + 我的位置」,它会给出当前高度/方位与可见窗口;如果在地平线以下,会直接说明。较暗的星需要双筒或长曝光照片。

**这个命名是官方的吗?**

不是。IAU 是唯一有权正式命名天体的机构,不承认任何商业命名。真实的是这颗星本身与它的坐标;名字是纪念性的,证书上写得很清楚。

**我可以从列表里挑一颗特定的星吗?**

不能,这不是这里的做法。星由离世的时刻与地点计算而来,不从目录里挑选;同样的输入永远得到同一颗。免费预览就是让你先看这颗算出来的星,再决定要不要留下它。

**能在 Stellarium 里找到吗?**

能。把证书上的 RA/Dec(J2000)按「05h55m10.3s +07d24m25s」的格式输入搜索框,或尝试用星表编号检索;确认历元是 J2000。坐标对得上,就说明这颗星真实存在于那里。

**可以给离世的宠物买吗?**

可以,流程相同:宠物的名字、离开的日期/时间/地点,算出那一刻天顶附近的真实恒星。宠物证书有单独的彩虹桥拱设计;入口在 /memorial-for-pets。

**从免费预览开始 ✦** — https://astarnamed.com/find

> 看看纪念星怎么工作——免费预览 → https://astarnamed.com/memorial-star