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API · /telescope-api

Telescope Optics API

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Teleskop-Optik-Mathematik als API, lokal und deterministisch berechnet – die Vergrößerungs-, Austrittspupillen- und Auflösungsleistungszahlen, mit denen ein Amateurastronom oder eine Sternenbeobachtungs-App Ausrüstung und Okulare auswählt. Der Vergrößerungs-Endpunkt liefert die Vergrößerung = Brennweite des Teleskops ÷ Brennweite des Okulars (ein 1000-mm-Fernrohr mit einem 10-mm-Okular ergibt 100×), das Öffnungsverhältnis und – aus der Apertur – den nutzbaren Bereich von etwa der Apertur in mm ÷ 7 (niedrigste nutzbare, ein 7-mm-Austrittspupille) bis etwa 2× der Apertur in mm, jenseits dessen das Bild nur dunkler und unscharf wird; übergibt man ein Okular-Sichtfeld, wird das wahre Gesichtsfeld zurückgegeben. Der Austrittspupillen-Endpunkt liefert Apertur ÷ Vergrößerung, die Breite des Lichtstrahls, der das Okular verlässt – eine große 4–7 mm Austrittspupille für helle, weite Ansichten von Nebeln, eine kleine 0,5–2 mm für den Mond und Planeten bei hoher Vergrößerung. Der Auflösungs-Endpunkt liefert das Dawes-Limit ≈ 116 ÷ Apertur(mm) und das etwas strengere Rayleigh-Limit ≈ 138 ÷ Apertur in Bogensekunden, plus die Grenzhelligkeit ≈ 2,7 + 5·log₁₀(Apertur mm) – größeres Glas spaltet feinere Doppelsterne und erreicht schwächere Sterne, obwohl Seeing die reale Auflösung normalerweise auf etwa 1 Bogensekunde begrenzt. Alles wird lokal und deterministisch berechnet, daher ist es sofort und privat. Ideal für Astronomie- und Sternenbeobachtungs-Apps, Teleskop-Shop- und Okularrechner-Tools sowie Beobachtungsplaner-Hilfsprogramme. Reine lokale Berechnung – kein Key, kein Drittanbieter-Service, sofort. 3 Compute-Endpunkte. Für Kamera-/Dünnlinsen-Bildgebung verwenden Sie eine Lens-API; für Sternhelligkeiten eine Star-Magnitude-API.

#telescope #astronomy #optics #stargazing #eyepiece #developer-tools
api.oanor.com/telescope-api
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/api/telescope-api/openapi.json
/api/telescope-api/llms.txt

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Latenza media
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ultimi 7 giorni
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Correlato APIs

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Stellar Parallax API

Stellar-parallax and astrometry maths as an API, computed locally and deterministically. The distance endpoint turns a measured trigonometric parallax angle into a distance using d(pc) = 1/p(arcsec), accepting the parallax in arcseconds or milliarcseconds and returning the distance in parsecs, light-years and astronomical units — a parallax of one arcsecond is one parsec (≈3.2616 light-years) by definition, and Proxima Centauri’s 0.7687-arcsecond parallax gives about 1.30 pc, or 4.24 light-years. The parallax endpoint inverts it, p(arcsec) = 1/d(pc), giving the tiny annual back-and-forth angle a star traces against the background as Earth orbits the Sun. The proper-motion endpoint computes a star’s tangential (transverse) velocity across the sky from its proper motion and distance, v_t = 4.74047·μ(arcsec/yr)·d(pc) km/s — Barnard’s Star, with a proper motion of about 10.39 arcsec/yr at 1.83 pc, races across the sky at roughly 90 km/s. Everything is computed locally and deterministically, so it is instant and private. Ideal for astronomy, astrophysics, planetarium, education and science-communication app developers, star-distance and stellar-kinematics tools, and Gaia-catalogue post-processing. Pure local computation — no key, no third-party service, instant. Live, nothing stored. 3 endpoints. This is geometric distance and kinematics; for a star’s apparent and absolute brightness use a star-magnitude API.

api.oanor.com/parallax-api

Light Travel Time API

Light-travel-time astronomy maths as an API, computed locally and deterministically. The travel-time endpoint computes how long light takes to cross a distance, t = d/c with c = 299,792,458 m/s exactly, accepting the distance in metres, kilometres, miles, astronomical units, light-years, parsecs or light-seconds/minutes and returning the time in seconds, minutes, hours, days and years — light from the Sun reaches Earth in about 8.3 minutes and the nearest star is about 4.2 light-years away. The distance endpoint inverts the relation, d = c·t, to give how far light travels in a time, returning the distance in metres, kilometres, astronomical units, light-years and parsecs — one light-year is about 9.461×10¹⁵ m. The round-trip endpoint computes the one-way and round-trip communication delay to a target, d/c and 2·d/c, the light-speed latency that makes distant spacecraft control so slow and Mars rovers largely autonomous. Distance units include light-second and light-minute and time units run from seconds to years. Everything is computed locally and deterministically, so it is instant and private. Ideal for astronomy, space-mission, education, science-communication and simulation app developers, communication-delay and cosmic-distance tools, and physics teaching. Pure local computation — no key, no third-party service, instant. Live, nothing stored. 3 endpoints. This is light travel time; for an object's angular size use an angular-size API and for sidereal time a sidereal API.

api.oanor.com/lighttime-api

Angular Size API

Angular-size astronomy and optics maths as an API, computed locally and deterministically. The angular-size endpoint computes the angular diameter an object subtends, δ = 2·arctan(d/(2D)), from its physical size and its distance, returning the angle in radians, degrees, arcminutes and arcseconds, along with the small-angle approximation δ ≈ d/D — the Sun and Moon are each about half a degree (31 arcminutes) across. The distance endpoint inverts the relation, D = d/(2·tan(δ/2)), to give an object's distance from its known true size and its measured angular size, the basis of the standard-ruler distance method. The object-size endpoint computes an object's physical diameter, d = 2·D·tan(δ/2), from its distance and angular size. Size and distance use any one consistent unit, and angles may be given in radians, degrees, arcminutes or arcseconds. Everything is computed locally and deterministically, so it is instant and private. Ideal for astronomy, telescope, astrophotography, surveying and optics app developers, field-of-view and rangefinding tools, and physics education. Pure local computation — no key, no third-party service, instant. Live, nothing stored. 3 endpoints. This is angular size; for stellar magnitude and parallax distance use a star-magnitude API and for sidereal time a sidereal API.

api.oanor.com/angularsize-api

Sidereal Time API

Sidereal-time astronomy as an API, computed locally and deterministically. The gmst endpoint computes the Greenwich Mean Sidereal Time for a UT date and time, GMST = 18.697374558 + 24.06570982441908·(JD − 2451545.0) hours modulo 24, returning it in hours, degrees and hours-minutes-seconds together with the Julian Day — sidereal time tracks the stars rather than the sun and gains about three minutes and fifty-six seconds each day. The lst endpoint adds the observer's longitude to give the Local Sidereal Time, LST = GMST + longitude/15 (east positive), which equals the right ascension of any star currently crossing the local meridian. The hour-angle endpoint computes the hour angle of a celestial object, HA = LST − RA, from its right ascension and the local sidereal time (or a date, time and longitude): an hour angle of zero means the object is on the meridian at its highest point, a positive hour angle means it is west of the meridian and setting, and a negative one means it is east and rising. Dates are YYYY-MM-DD and times HH:MM:SS in UT, longitude in degrees and right ascension in hours. Everything is computed locally and deterministically, so it is instant and private. Ideal for astronomy, telescope-control, planetarium, observatory and astrophotography app developers, star-pointing and transit tools, and astronomy education. Pure local computation — no key, no third-party service, instant. Live, nothing stored. 3 endpoints. This is sidereal time; for the sun's position use a solar-position API and for sunrise and sunset times a sunrise API.

api.oanor.com/sidereal-api

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Come ottengo una chiave API per Telescope Optics API?
Registrati gratuitamente su oanor.com, genera una chiave API dalla dashboard sviluppatore e chiama Telescope Optics API con l'header x-oanor-key. Nessuna carta di credito richiesta per il piano gratuito.
Qual è il limite di velocità di Telescope Optics API?
Il piano gratuito consente 1 richiesta al secondo. I piani a pagamento arrivano fino a 50 richieste al secondo nel piano Mega. I limiti rigorosi restituiscono HTTP 429 oltre la quota — nessuna spesa imprevista.
Quanto costa Telescope Optics API?
Telescope Optics API ha un piano gratuito con 100 chiamate / mese. I piani a pagamento partono da €7.00 / mese con quote più alte e limiti di velocità più rapidi.
Posso cancellare l'abbonamento in qualsiasi momento?
Sì. I piani sono fatturati mensilmente e puoi cancellare in qualsiasi momento dalla dashboard di fatturazione. Nessun contratto a lungo termine e nessuna penale di cancellazione.
Telescope Optics API è conforme al GDPR?
Tutte le richieste a Telescope Optics API passano attraverso il nostro gateway in UE. La tua chiave upstream non lascia mai il nostro server e nessun dato personale viene condiviso con il fornitore upstream oltre alla richiesta inviata.

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curl https://api.oanor.com/telescope-api/SOME_PATH \
  -H "x-oanor-key: oanor_test_..."
const res = await fetch("https://api.oanor.com/telescope-api/SOME_PATH", {
  headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();
$ch = curl_init("https://api.oanor.com/telescope-api/SOME_PATH");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, ["x-oanor-key: oanor_test_..."]);
$response = curl_exec($ch);
import requests
r = requests.get(
    "https://api.oanor.com/telescope-api/SOME_PATH",
    headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())

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