Cen A multiwavelength SED

Cen A is a γ-ray source at redshift z = 0.002. Its MMDC SED has 30,529 points from 24 catalogues, with dated data from 2004–⁠2024. Download the SED as CSV.

Updated 29 October 2026.

Names and position

Also known as 1FGL J1325.6-4300, 1FLAT J132527.6-430108, 1OUNYU J132528-4301.1, 3FGL J1325.4-4301, 5BZU J1325-4301, BZU J1325-4301, CEN-A, CENTAURUS-A, CENTAURUSA.

Redshift: z = 0.002
Position (ICRS): RA 201.36506°, Dec −43.01911°
Galactic: l 309.516°, b 19.417°

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

The SED

Data: 30,529 points (5 upper limits) from 24 catalogues
Dated data: 2004–2024 (MJD 53361–60506)
Undated catalogue values: 48
Frequency range of detections: log ν = 8.2–26.2 [Hz] (radio, microwave, infrared, optical, X-ray, γ-ray)
Swift measurements analysed by MMDC: 274 UVOT and 3,095 XRT
Largest catalogues (points): ASAS-SN (23,646), MMDCXRT (5,792), NEOWISE (653), MMDCNuX (213), WISEME (140)

Data by band

6 of the 7 bands have data. The optical band has the most points, 23,646 of 30,529; its largest catalogue is ASAS-SN with 23,646.

Band	Points	Catalogues	Dated data
radio	4	3	undated
microwave	12	5	2014–2016
infrared	804	5	2010–2024
optical	23,646	1	2014–2024
X-ray	6,042	6	2004–2024
γ-ray	21	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=201.36506, dec=-43.01911, name="Cen A")

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

Nearby sources

PKS 1313-333, 9.5° away
PKS 1424-41, 11.5° away
PKS 1440-389, 15.3° away
PKS 1451-375, 17.7° 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).