Docs/APIs/Sun Position

Sun Position

Get sun position data

OperationalCredits 1 per callp50 349msAstrologyStar

Overview

Sun Position works by analyzing the location provided and calculating sun position data. It uses advanced algorithms to calculate data such as altitude, azimuth, and distance of the sun from the location and returns the sun position data.

Endpoint

One host, one path per API. The block below shows this call in four languages; every one of them is the same HTTP request. Making requests covers the timeouts, retries and parameter rules that apply to all of them. The SDKs wrap the same call in a typed client.

GEThttps://api.apiverve.com/v1/sunposition
curl "https://api.apiverve.com/v1/sunposition?lat=37.7749&lon=-122.4194&date=01-16-2026&time=14%3A30&timezone=America%2FLos_Angeles" \
  -H "x-api-key: your_api_key_here"
const res = await fetch('https://api.apiverve.com/v1/sunposition?lat=37.7749&lon=-122.4194&date=01-16-2026&time=14%3A30&timezone=America%2FLos_Angeles', {
  headers: { 'x-api-key': 'your_api_key_here' },
});

if (!res.ok) throw new Error(`${res.status} ${await res.text()}`);

const { data } = await res.json();
console.log(data);
import requests

res = requests.get(
    "https://api.apiverve.com/v1/sunposition?lat=37.7749&lon=-122.4194&date=01-16-2026&time=14%3A30&timezone=America%2FLos_Angeles",
    headers={"x-api-key": "your_api_key_here"},
    timeout=15,
)
res.raise_for_status()

print(res.json()["data"])
package main

import (
	"fmt"
	"io"
	"net/http"
)

func main() {
	req, _ := http.NewRequest("GET", "https://api.apiverve.com/v1/sunposition?lat=37.7749&lon=-122.4194&date=01-16-2026&time=14%3A30&timezone=America%2FLos_Angeles", nil)
	req.Header.Set("x-api-key", "your_api_key_here")

	res, err := http.DefaultClient.Do(req)
	if err != nil {
		panic(err)
	}
	defer res.Body.Close()

	out, _ := io.ReadAll(res.Body)
	fmt.Println(string(out))
}

Replace your_api_key_here with the key from your dashboard. When the inputs arrive as a list rather than one at a time, batch requests run up to 200 of them through this same API in a single call.

Authentication

Send your key in the x-api-key header. That is the only auth step — there is no token exchange and no per-endpoint scope to configure. Authentication covers creating, rotating and revoking keys.

401 is the only auth verdict

A 401 means the key is missing, invalid or expired. A 403 means the key is valid but not permitted here — blocked by a key restriction or an IP allow-list. Running out of credits is a 429.

Parameters

Sent in the query string. Premium parameters are accepted on every plan but only take effect on plans that include them.

ParameterTypeDescription
latRequirednumberThe latitude of the location
range -90–90
lonRequirednumberThe longitude of the location
range -180–180
dateOptionalPremiumstringThe date to get the sun position data for (MM-DD-YYYY)
date
timeOptionalstringThe time of day for the calculation (HH:mm format, 24-hour), read in the timezone of the coordinates. Defaults to 00:00 if not provided
time
timezoneOptionalstringIANA timezone to read the date and time in, such as America/Los_Angeles. Defaults to the timezone of the coordinates
timezone

Response

Every API returns the same three top-level keys, so one response handler covers your whole integration: status, error and data. Only data changes shape. Response format covers the envelope, the other output formats and how premium fields are withheld.

Sample response
{
  "status": "ok",
  "error": null,
  "data": {
    "date": "01-16-2026",
    "time": "14:30",
    "timezone": "America/Los_Angeles",
    "timestampUTC": "2026-01-16T22:30:00.000Z",
    "coordinates": {
      "latitude": 37.7749,
      "longitude": -122.4194
    },
    "sun": {
      "altitude": 0.41616137328975444,
      "azimuth": 0.5817558808515568,
      "altitudeDegrees": 23.844,
      "azimuthDegrees": 33.332,
      "compassBearing": 213.332,
      "isDaylight": true,
      "declination": -20.7961,
      "rightAscension": 19.9228,
      "hourAngle": 2.174,
      "distance": 0.983786
    },
    "equationOfTime": -9.88,
    "airMass": 2.454,
    "clearSky": {
      "directNormal": 702.4,
      "globalHorizontal": 284.9
    },
    "shadowRatio": 2.254,
    "panelAim": {
      "tilt": 66.07,
      "azimuth": 213.44
    }
  }
}

Response fields

Paths are relative to data. Premium fields are absent rather than zeroed on plans that do not include them, so check for presence instead of comparing to 0.

FieldTypeExampleDescription
datestring"01-16-2026"Date the position was calculated for
timestring"14:30"Time of day the position was calculated for
timezonestring"America/Los_Angeles"IANA timezone the date and time were read in, resolved from the coordinates unless one was given
timestampUTCstring"2026-01-16T22:30:00.000Z"The instant the position was calculated for, in UTC, so the answer is unambiguous
coordinatesobject{...}The point on Earth the position was calculated from
latitudenumber37.7749Latitude used for the calculation
longitudenumber-122.4194Longitude used for the calculation
sunobject{...}Where the sun sits in the sky at that time and place
altitudenumber0.41616137328975444Height of the sun above the horizon, in radians; negative when the sun is below the horizon. Multiply by 180/PI for degrees
azimuthnumber0.5817558808515568Direction of the sun, in radians measured from due south and increasing westward. Multiply by 180/PI for degrees, then add 180 for a compass bearing
altitudeDegreesnumber23.844Height of the sun above the horizon in degrees; negative when below
azimuthDegreesnumber33.332Direction of the sun in degrees from due south, increasing westward
compassBearingnumber213.332Direction of the sun as a compass bearing, 0 for north and 180 for south
isDaylightbooleantrueWhether the sun is above the horizon at this time and place
declinationPremiumnumber-20.7961Angle of the sun north or south of the celestial equator, in degrees
rightAscensionPremiumnumber19.9228Position of the sun along the celestial equator, in hours
hourAnglePremiumnumber2.174Hours since the sun crossed the local meridian; negative before solar noon
distancePremiumnumber0.983786Distance from Earth to the sun in astronomical units
equationOfTimePremiumnumber-9.88Minutes a sundial reads ahead of the clock at this date; negative when it reads behind
airMassPremiumnumber2.454How much atmosphere the sunlight crosses, as a multiple of straight overhead; null after dark
clearSkyPremiumobject{...}Cloudless-sky irradiance estimate in watts per square metre; null after dark
directNormalPremiumnumber702.4Irradiance on a surface aimed straight at the sun, which is what a tracker sees
globalHorizontalPremiumnumber284.9Irradiance on a flat horizontal surface
shadowRatioPremiumnumber2.254Length of the shadow cast by an object, per unit of its height; null after dark
panelAimPremiumobject{...}Where to point a solar panel to face the sun squarely at this moment; null after dark
tiltPremiumnumber66.07Degrees to tilt the panel back from vertical
azimuthPremiumnumber213.44Compass bearing to point the panel at

Errors

Read the HTTP status first, then error for the specific reason. The body names the parameter that has to change. Error handling covers the full status list and which of them are worth retrying.

StatusMeaningWhat to do
400Input was rejectedRead error; it names the parameter.
401Key missing or invalidCheck the header name and the key value.
403Key valid, but not permittedA key restriction or IP allow-list; see key scoping.
429Rate limited, or out of creditsRead error to tell them apart; see rate limits.

Use cases

Solar Energy
Use the Sun Position API to get sun position data for solar energy. Use the data to optimize solar panel placement, improve energy efficiency, and maximize power generation
Astronomy
Get sun position data by using the Sun Position API for astronomy. Use the data to track celestial events, observe solar phenomena, and enhance stargazing
Photography
Use the Sun Position API to get sun position data for photography. Use the data to plan photo shoots, optimize lighting conditions, and capture stunning images
Outdoor Activities
Get sun position data by using the Sun Position API for outdoor activities. Use the data to plan outdoor events, schedule activities, and enhance experiences

Other ways to use Sun Position

Set up Sun Position on APIVerve, or reach the same source a different way. Your APIVerve account and credits work on all of them — one key, one balance.

Give it to an AI agentConnect over MCP and your agent calls it as a native tool — Claude, Cursor, ChatGPT.VerveKitReference →
Use it in Google Sheets or ExcelA =VERVE() formula fills a column — no script, no export, recalculates in place.VerveSheetsReference →
Ground an agent on itA cited, machine-checkable fact your model can't produce on its own.VerveContextReference →

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