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feat(skychart): add SH2, LBN, vdB, HCG, and Abell PNe DSO catalogs #7

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Merged
giancarloerra merged 1 commit into from
Mar 15, 2026
Merged

feat(skychart): add SH2, LBN, vdB, HCG, and Abell PNe DSO catalogs #7

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11 changes: 8 additions & 3 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -70,7 +70,11 @@ I've decided to open source it as I think it could be useful to other astrophoto
</tr>
<tr>
<td align="center"><img src="screenshots/screenshot_sky5.png" alt="Sky Dashboard" /><br/><sub>Sky Dashboard (Telescopius integration: best objects, searching & lists)</sub></td>
<td align="center"><img src="screenshots/screenshot_sky6.png" alt="Sky Dashboard" /><br/><sub>Sky Dashboard (eq/az and overlays view options)</sub></td>
<td align="center"><img src="screenshots/screenshot_sky6.png" alt="Sky Dashboard" /><br/><sub>Sky Dashboard (EQ/AZ mounts and overlays view options)</sub></td>
</tr>
<tr>
<td align="center"><img src="screenshots/screenshot_sky7.png" alt="Sky Dashboard" /><br/><sub>Sky Dashboard (All the supported DSO catalogues)</sub></td>
<td align="center"><img src="screenshots/screenshot_sky8.png" alt="Sky Dashboard" /><br/><sub>Sky Dashboard (Natural visual colours survey)</sub></td>
</tr>
</table>

Expand Down Expand Up @@ -463,7 +467,7 @@ APD requires a few third-party accounts and some technical setup. If you need he
- **Weather Dashboard**: React 18 + TypeScript + Tailwind CSS (Vite build)
- **Sky Dashboard**: Self-contained HTML page with Aladin Lite v3.6.5 sky viewer, jQuery 3.7.1 (Aladin dependency)
- **Icons**: Lucide React
- **Celestial data**: Star, constellation, and DSO data from [d3-celestial](https://github.com/ofrohn/d3-celestial) (bundled locally in `public/data/celestial/`)
- **Celestial data**: Star, constellation, and DSO data from [d3-celestial](https://github.com/ofrohn/d3-celestial) plus additional catalogs (SH2, LBN, vdB, HCG, Abell PNe) from [VizieR/CDS](https://vizier.cds.unistra.fr/) (bundled locally in `public/data/celestial/`)
- **Astronomy calculations**: Simplified VSOP87/Meeus for planet positions, moon position and phase — approximate, optimised for visual display rather than astrometric precision
- **Sky Dashboard persistence**: UI settings (panel state, sliders, toggles) stored in `localStorage` (`astro-sky-dashboard-v1`); FOVs and favorites stored in Redis via the API

Expand Down Expand Up @@ -763,7 +767,7 @@ apd/
│ ├── settings.html # Settings page (location, API keys, system status)
│ ├── theme.css # Shared CSS theme (accent colour tokens)
│ ├── logo.png # App logo / favicon
│ └── data/celestial/ # Star, constellation & DSO data (from d3-celestial)
│ └── data/celestial/ # Star, constellation & DSO data (d3-celestial + VizieR catalogs)
├── screenshots/ # README screenshots
├── .github/
│ ├── workflows/
Expand Down Expand Up @@ -812,6 +816,7 @@ APD includes or links to the following third-party components, each under its ow
|-----------|---------|-------|
| [Aladin Lite v3](https://github.com/cds-astro/aladin-lite) | GPL-3.0 | Loaded from CDS servers; compatible with AGPL-3.0 per §13 of both licenses |
| [d3-celestial](https://github.com/ofrohn/d3-celestial) data files | BSD-3-Clause | Star, constellation, and DSO catalog data bundled in `public/data/celestial/` |
| VizieR/CDS extra catalogs | Public astronomical data | SH2 (Sharpless 1959), LBN (Lynds 1965), B (Barnard 1927), LDN (Lynds 1962), vdB (van den Bergh 1966), HCG (Hickson 1993), Abell PNe (Acker+ 1992) — sourced from [VizieR, CDS Strasbourg](https://vizier.cds.unistra.fr/) and bundled in `public/data/celestial/catalogs_extra.json` |
| [Lucide](https://lucide.dev/) icons | ISC | Icon library used in the React frontend |
| [Google Fonts — Inter](https://fonts.google.com/specimen/Inter) | SIL Open Font License 1.1 | Loaded from Google Fonts CDN |
| SDO/HMI solar imagery | Public domain | Hotlinked from [Stanford JSOC](https://jsoc1.stanford.edu); NASA/SDO data is in the public domain |
Expand Down
1 change: 1 addition & 0 deletions public/data/celestial/catalogs_extra.json
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59 changes: 55 additions & 4 deletions public/skychart.html
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Expand Up @@ -760,6 +760,11 @@ <h2 style="width:100%;text-align:center;display:flex;align-items:center;justify-
<label><input type="checkbox" id="chk-dso-ngc"> NGC</label>
<label><input type="checkbox" id="chk-dso-ic" checked> IC</label>
<label><input type="checkbox" id="chk-dso-ldn" checked> LDN/B</label>
<label><input type="checkbox" id="chk-dso-sh2"> SH2</label>
<label><input type="checkbox" id="chk-dso-lbn"> LBN</label>
<label><input type="checkbox" id="chk-dso-vdb"> vdB</label>
<label><input type="checkbox" id="chk-dso-hcg"> HCG</label>
<label><input type="checkbox" id="chk-dso-abell"> Abell PNe</label>
</div>
</div>
<div class="control-group">
Expand All @@ -782,6 +787,7 @@ <h2 style="width:100%;text-align:center;display:flex;align-items:center;justify-
</div>
<div style="font-size: 0.9rem;">
<label class="overlay-row"><input type="checkbox" id="chk-dso-nullmag"> Unknown magnitude</label>
<div style="font-size:0.7rem;color:#666;margin-top:2px;padding-left:22px;">For NGC/IC objects missing mag data.<br>Abell, HCG, LBN, SH2 always bypass this filter.</div>
</div>
</div>
</div>
Expand Down Expand Up @@ -1043,6 +1049,9 @@ <h2 style="width:100%;text-align:center;display:flex;align-items:center;justify-
planetary: ['pn']
};

// Catalogs that inherently lack visual magnitude data — bypass the mag filter
const NO_MAG_CATALOGS = new Set(['abell', 'hcg', 'lbn', 'sh2']);

function dsoTypeClass(type) {
if (['g','e','s','s0','sd','i','gg'].includes(type)) return 'dso-gx';
if (['bn','en','rn','sfr','snr'].includes(type)) return 'dso-nb';
Expand All @@ -1060,6 +1069,11 @@ <h2 style="width:100%;text-align:center;display:flex;align-items:center;justify-
if (/\bNGC\s?\d/i.test(text)) cats.push('ngc');
if (/\bIC\s?\d/i.test(text)) cats.push('ic');
if (/\bLDN\s?\d/i.test(text) || /\bB\s\d/i.test(text)) cats.push('ldn');
if (/\bSH2-/i.test(text)) cats.push('sh2');
if (/\bLBN\s?\d/i.test(text)) cats.push('lbn');
if (/\bvdB\s?\d/i.test(text)) cats.push('vdb');
if (/\bHCG\s?\d/i.test(text)) cats.push('hcg');
if (/\bAbell\s?\d/i.test(text)) cats.push('abell');
return cats;
}

Expand All @@ -1071,6 +1085,16 @@ <h2 style="width:100%;text-align:center;display:flex;align-items:center;justify-
if (ngc) return ngc[1];
let ic = d.match(/\b(IC\s?\d+)\b/i);
if (ic) return ic[1];
let sh2 = d.match(/\b(SH2-\d+)\b/i);
if (sh2) return sh2[1];
let lbn = d.match(/\b(LBN\s?\d+)\b/i);
if (lbn) return lbn[1];
let vdb = d.match(/\b(vdB\s?\d+)\b/i);
if (vdb) return vdb[1];
let hcg = d.match(/\b(HCG\s?\d+)\b/i);
if (hcg) return hcg[1];
let abell = d.match(/\b(Abell\s?\d+)\b/i);
if (abell) return abell[1];
let ldn = d.match(/\b(LDN\s?\d+)\b/i);
if (ldn) return ldn[1];
let barn = d.match(/\b(B\s\d+)\b/i);
Expand Down Expand Up @@ -1321,6 +1345,11 @@ <h2 style="width:100%;text-align:center;display:flex;align-items:center;justify-
chkDsoNGC: document.getElementById('chk-dso-ngc').checked,
chkDsoIC: document.getElementById('chk-dso-ic').checked,
chkDsoLDN: document.getElementById('chk-dso-ldn').checked,
chkDsoSH2: document.getElementById('chk-dso-sh2').checked,
chkDsoLBN: document.getElementById('chk-dso-lbn').checked,
chkDsoVdB: document.getElementById('chk-dso-vdb').checked,
chkDsoHCG: document.getElementById('chk-dso-hcg').checked,
chkDsoAbell: document.getElementById('chk-dso-abell').checked,
chkDsoGalaxies: document.getElementById('chk-dso-galaxies').checked,
chkDsoNebulae: document.getElementById('chk-dso-nebulae').checked,
chkDsoDark: document.getElementById('chk-dso-dark').checked,
Expand Down Expand Up @@ -1392,6 +1421,11 @@ <h2 style="width:100%;text-align:center;display:flex;align-items:center;justify-
if (s.chkDsoNGC != null) document.getElementById('chk-dso-ngc').checked = s.chkDsoNGC;
if (s.chkDsoIC != null) document.getElementById('chk-dso-ic').checked = s.chkDsoIC;
if (s.chkDsoLDN != null) document.getElementById('chk-dso-ldn').checked = s.chkDsoLDN;
if (s.chkDsoSH2 != null) document.getElementById('chk-dso-sh2').checked = s.chkDsoSH2;
if (s.chkDsoLBN != null) document.getElementById('chk-dso-lbn').checked = s.chkDsoLBN;
if (s.chkDsoVdB != null) document.getElementById('chk-dso-vdb').checked = s.chkDsoVdB;
if (s.chkDsoHCG != null) document.getElementById('chk-dso-hcg').checked = s.chkDsoHCG;
if (s.chkDsoAbell != null) document.getElementById('chk-dso-abell').checked = s.chkDsoAbell;
if (s.chkDsoGalaxies != null) document.getElementById('chk-dso-galaxies').checked = s.chkDsoGalaxies;
if (s.chkDsoNebulae != null) document.getElementById('chk-dso-nebulae').checked = s.chkDsoNebulae;
if (s.chkDsoDark != null) document.getElementById('chk-dso-dark').checked = s.chkDsoDark;
Expand Down Expand Up @@ -1773,12 +1807,13 @@ <h2 style="width:100%;text-align:center;display:flex;align-items:center;justify-

try {
const BASE = '/data/celestial/';
const [starsResp, starNamesResp, linesResp, constNamesResp, dsosResp] = await Promise.all([
const [starsResp, starNamesResp, linesResp, constNamesResp, dsosResp, extraResp] = await Promise.all([
fetch(BASE + 'stars.14.json'),
fetch(BASE + 'starnames.json'),
fetch(BASE + 'constellations.lines.json'),
fetch(BASE + 'constellations.json'),
fetch(BASE + 'dsos.14.json')
fetch(BASE + 'dsos.14.json'),
fetch(BASE + 'catalogs_extra.json')
]);
if (!starsResp.ok || !starNamesResp.ok || !linesResp.ok || !constNamesResp.ok)
throw new Error('HTTP fetch failed');
Expand All @@ -1788,6 +1823,11 @@ <h2 style="width:100%;text-align:center;display:flex;align-items:center;justify-
const linesGeo = await linesResp.json();
const constNamesGeo = await constNamesResp.json();
const dsosGeo = dsosResp.ok ? await dsosResp.json() : { features: [] };
const extraGeo = extraResp.ok ? await extraResp.json() : { features: [] };
// Merge extra catalogs into DSO data
if (extraGeo.features && extraGeo.features.length > 0) {
dsosGeo.features = dsosGeo.features.concat(extraGeo.features);
}

function lon2ra(lon) { return lon < 0 ? lon + 360 : lon; }

Expand Down Expand Up @@ -2447,6 +2487,11 @@ <h2 style="width:100%;text-align:center;display:flex;align-items:center;justify-
let catNGC = document.getElementById('chk-dso-ngc').checked;
let catIC = document.getElementById('chk-dso-ic').checked;
let catLDN = document.getElementById('chk-dso-ldn').checked;
let catSH2 = document.getElementById('chk-dso-sh2').checked;
let catLBN = document.getElementById('chk-dso-lbn').checked;
let catVdB = document.getElementById('chk-dso-vdb').checked;
let catHCG = document.getElementById('chk-dso-hcg').checked;
let catAbell = document.getElementById('chk-dso-abell').checked;
let typeGx = document.getElementById('chk-dso-galaxies').checked;
let typeNb = document.getElementById('chk-dso-nebulae').checked;
let typeDn = document.getElementById('chk-dso-dark').checked;
Expand All @@ -2460,9 +2505,15 @@ <h2 style="width:100%;text-align:center;display:flex;align-items:center;justify-
let catOk = (catM && lbl.catalogs.includes('m')) ||
(catNGC && lbl.catalogs.includes('ngc')) ||
(catIC && lbl.catalogs.includes('ic')) ||
(catLDN && lbl.catalogs.includes('ldn'));
(catLDN && lbl.catalogs.includes('ldn')) ||
(catSH2 && lbl.catalogs.includes('sh2')) ||
(catLBN && lbl.catalogs.includes('lbn')) ||
(catVdB && lbl.catalogs.includes('vdb')) ||
(catHCG && lbl.catalogs.includes('hcg')) ||
(catAbell && lbl.catalogs.includes('abell'));
let typeOk = lbl.typeGroup && typeMap[lbl.typeGroup];
let magOk = lbl.mag === null ? showNullMag : lbl.mag <= dsoMagLim;
let inNoMagCat = lbl.catalogs.some(c => NO_MAG_CATALOGS.has(c));
let magOk = inNoMagCat || (lbl.mag === null ? showNullMag : lbl.mag <= dsoMagLim);
if (catOk && typeOk && magOk) {
positionLabel(lbl.el, lbl.ra, lbl.dec, size, 10, -4);
} else {
Expand Down
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