M 87 multiwavelength SED

M 87 is a γ-ray source at redshift z = 0.00438. Its MMDC SED has 20,315 points from 38 catalogues, with dated data from 2007–⁠2025. Download the SED as CSV.

M 87 hosts the black hole imaged by the Event Horizon Telescope in 2019, and its jet was the first one seen, by Heber Curtis in 1918.

Updated 29 October 2026.

Names and position

Also known as 1FGL J1230.8+1223, 1FLAT J123049.4+122328, 1Jy 1228+126, 3FGL J1230.9+1224, N4486, NGC4486, PKS 1228+126, PKS B1228+126, TeV J1230+123, VirA, WMAP165, WMAP5 J0750+1230.

Redshift: z = 0.00438
Position (ICRS): RA 187.70593°, Dec 12.39112°
Galactic: l 283.778°, b 74.491°

Other names and measurements: NED and SIMBAD within 5″ of this position.

The SED

Data: 20,315 points (7 upper limits) from 38 catalogues
Dated data: 2007–2025 (MJD 54307–60853)
Undated catalogue values: 207
Frequency range of detections: log ν = 7.0–26.2 [Hz] (radio, microwave, infrared, optical, ultraviolet, X-ray, γ-ray)
Swift measurements analysed by MMDC: 1,076 UVOT and 300 XRT
Largest catalogues (points): ASAS-SN (14,307), MMDCXRT (2,504), ZTF (1,756), MMDCNuX (840), MMDCOUV (458)

Data by band

All 7 bands have data. The optical band has the most points, 14,765 of 20,315; its largest catalogue is ASAS-SN with 14,307.

Band	Points	Catalogues	Dated data
radio	40	4	undated
microwave	18	5	2014
infrared	2,015	10	2009–2025
optical	14,765	2	2007–2025
ultraviolet	57	3	undated
X-ray	3,392	10	2007–2025
γ-ray	28	4	undated

Get the data

The SED as CSV from the MMDC SED API (docs.mmdc.am).

In Python, with astro-mmdc:

from astro_mmdc import MMDC
sed = MMDC().sed.get(ra=187.70593, dec=12.39112, name="M 87")

The interactive SED plot, with time filtering and modeling (needs JavaScript).

Nearby sources

4C +13.46, 4.3° away
TXS 1213+097, 4.6° away
TXS 1212+171, 5.9° away
1ES 1212+078, 6.2° away

How to cite

Sahakyan, N., Vardanyan, V., Giommi, P., et al. 2024, AJ, 168, 289, doi:10.3847/1538-3881/ad8231 (arXiv:2410.01207).